2011 compared to 2010 MFC’s net sales for 2011 increased $533 million, or 8%, compared to 2010.
The increase was attributable to higher volume of about $420 million on air and missile defense programs (primarily PAC-3 and THAAD); and about $245 million from fire control systems programs primarily related to the SOF CLSS program, which began late in the third quarter of 2010.
Partially offsetting these increases were lower net sales due to decreased volume of approximately $75 million primarily from various services programs and approximately $20 million from tactical missile programs (primarily MLRS and JASSM).
MFC’s operating profit for 2011 increased $96 million, or 10%, compared to 2010.
The increase was attributable to higher operating profit of about $60 million for air and missile defense programs (primarily PAC-3 and THAAD) as a result of increased volume and retirement of risks; and approximately $25 million for various services programs.
Adjustments not related to volume, including net profit rate adjustments described above, were approximately $35 million higher in 2011 compared to 2010.
Backlog Backlog increased in 2012 compared to 2011 mainly due to increased orders and lower sales on fire control systems programs (primarily LANTIRN?
and Sniper?)
and on various services programs, partially offset by lower orders and higher sales volume on tactical missiles programs.
Backlog increased in 2011 compared to 2010 primarily due to increased orders on air and missile defense programs (primarily THAAD).
Trends We expect MFC’s net sales for 2013 will be comparable with 2012.
We expect low double digit percentage growth in air and missile defense programs, offset by an expected decline in volume on logistics services programs.
Operating profit and margin are expected to be comparable with 2012 results.
Mission Systems and Training Our MST business segment provides surface ship and submarine combat systems; sea and land-based missile defense systems; radar systems; mission systems and sensors for rotary and fixed-wing aircraft; littoral combat ships; simulation and training services; unmanned technologies and platforms; ship systems integration; and military and commercial training systems.
MST’s major programs include Aegis, MK-41 Vertical Launching System (VLS), TPQ-53 Radar System, MH-60, LCS, and PTDS.
MST’s operating results included the following (in millions):
## Table 0 ##
2012 compared to 2011 MST’s net sales for 2012 increased $447 million, or 6%, compared to 2011.
The increase in net sales for 2012 was attributable to higher volume and risk retirements of approximately $395 million from ship and aviation system programs (primarily PTDS; LCS; VLS; and MH-60); about $115 million for training and logistics solutions programs primarily due to net sales from Sim Industries, which was acquired in the fourth quarter of 2011; and approximately $30 million as a result of increased volume on integrated warfare systems and sensors programs (primarily Aegis).
Partially offsetting the increases were lower net sales of approximately $70 million from undersea systems programs due to lower volume on an international combat system program and towed array systems; and about $25 million due to lower volume on various other programs.
MST’s operating profit for 2012 increased $92 million, or 14%, compared to 2011.
The increase was attributable to higher operating profit of approximately $175 million from ship and aviation system programs, which reflects higher volume and risk retirements on certain programs (primarily VLS; PTDS; MH-60; and LCS) and reserves of about $55 million for contract cost matters on ship and aviation system programs recorded in the fourth quarter of 2011 (including the terminated presidential helicopter program).
Partially offsetting the increase was lower operating profit of approximately $40 million from undersea systems programs due to reduced profit booking rates on certain programs and lower volume on an international combat system program and towed array systems; and about $40 million due to lower volume on various other programs.
Adjustments not related to volume, including net profit booking rate adjustments and other matters described above, were approximately $150 million higher for 2012 compared to 2011.
Selected Financial Data The following selected financial data has been derived from the Company’s audited consolidated financial statements.
The statement of operations data for the years ended December 31, 2009, 2008 and 2007, and the balance sheet data at December 31, 2009 and 2008 have been derived from the Company’s audited financial statements included elsewhere herein.
The statement of operations data for the years ended December 31, 2006 and 2005, and the balance sheet data at December 31, 2007, 2006 and 2005 have been derived from the Company’s audited financial statements not included herein.
The selected financial data set forth below should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated financial statements and related notes included elsewhere herein.
## Table 1 ##
Quarterly net sales and the percentage changes in net sales by quarter for 2016 versus 2015 were as follows (dollars in millions):
## Table 2 ##
GROSS PROFIT Gross profit for 2016 was $2,812.8 million (31.4% of net sales), an increase of $402.1 million or 16.7%, compared to gross profit of $2,410.7 million (29.9% of net sales) for 2015.
As a percentage of net sales, gross profit increased 150 basis points.
The increase in gross profit dollars was primarily attributable to higher sales volume of approximately $254 million, savings from capital investments and cost reduction initiatives of approximately $113 million, lower material costs of approximately $67 million and the favorable impact of lower restructuring, acquisition and integration-related, and other costs of approximately $21 million, partially offset by the net impact of unfavorable foreign exchange rates of approximately $28 million, and the unfavorable net impact of price and product mix of approximately $11 million.
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES Selling, general and administrative expenses for 2016 were $1,532.9 million (17.1% of net sales), a decrease of $40.2 million compared to $1,573.1 million (19.5% of net sales) for 2015.
As a percentage of net sales, selling, general and administrative expenses decreased 240 basis points.
The decrease in selling, general and administrative expenses in dollars was primarily attributable to savings from capital investments and cost reduction initiatives of $27 million, the net impact of favorable foreign exchange rates of approximately $9 million, and the favorable impact of lower restructuring, acquisition and integration-related, and other costs of approximately $173 million, partially offset by approximately $94 million of costs due to higher sales volume, approximately $51 million of costs associated with investments in new product development, sales personnel, and marketing, and increased employee costs of approximately $18 million.
Restructuring, acquisition and integration-related, and other costs were lower primarily due to the non-recurring 2015 charge of approximately $122 million related to the settlement and defense of the polyurethane foam litigation and the $90 million received in the third quarter of 2016 related to a contract dispute, partially offset by a charge for approximately $48 million related to the write-off of the Lees tradename.
OPERATING INCOME Operating income for 2016 was $1,279.9 million (14.3% of net sales) reflecting an increase of $442.4 million, or 52.8%, compared to operating income of $837.6 million (10.4% of net sales) for 2015.
The increase in operating income was primarily attributable to increased sales volumes of approximately $160 million, savings from capital investments and cost reduction initiatives of approximately $140 million, lower material costs of approximately $67 million and the favorable impact of lower restructuring, acquisition and integration-related, and other costs of approximately $194 million, partially offset by approximately $51 million of costs associated with investments in new product development, sales personnel, and marketing, the net impact of unfavorable foreign exchange rates of approximately $19 million, increased employee costs of approximately $18 million, and the unfavorable net impact of price and product mix of approximately $13 million.
Restructuring, acquisition and integration-related, and other costs were lower primarily due to the non-recurring 2015 charge of approximately $122 million related to the settlement and defense of the polyurethane foam litigation and the $90 million received in the third quarter of 2016 related to a contract dispute, partially offset by a charge for approximately $48 million related to the write-off of the Lees tradename.
Global Ceramic Segment—Operating income was $478.5 million (15.1% of segment net sales) for 2016 reflecting an increase of $64.3 million, or 15.5%, compared to operating income of $414.2 million (13.7% of segment net sales) for 2015.
The increase in operating income was primarily attributable to savings from capital investments and cost reduction initiatives of approximately $49 million, increased sales volumes of approximately $36 million, and the favorable impact of price and product mix of approximately $20 million, partially offset by costs associated with investments in new product development, sales personnel, and marketing of approximately $18 million, increased employee costs of approximately $9 million, increased material costs of approximately $6 million, and the net impact of unfavorable foreign exchange rates of approximately $3 million.
Flooring NA Segment—Operating income was $505.1 million (13.1% of segment net sales) for 2016 reflecting an increase of $240.8 million, or 91.1%, compared to operating income of $264.3 million (7.3% of segment net sales) for 2015.
The increase in operating income was primarily attributable to savings from capital investments and cost reduction initiatives of approximately $64 million, lower material costs of approximately $49 million, increased sales volumes of approximately $46 million, and the favorable impact of lower restructuring, acquisition and integration-related, and other costs of approximately $157 million, partially offset by approximately $27 million of costs associated with investments in new product development, sales personnel, and marketing, the unfavorable impact of price and product mix of approximately $27 million, costs associated with investments in expansion of production capacity of approximately $6 million and increased employee costs of $5 million.
Restructuring, acquisition and integration-related, and other costs were lower primarily due to the non-recurring 2015 charge of approximately $122 million related to the settlement and defense of the polyurethane foam litigation and the $90 million received in the third quarter of 2016 related to a contract dispute, partially offset by a charge for approximately $48 million related to the write-off of the Lees tradename.
Flooring ROW Segment—Operating income was $333.1 million (17.4% of segment net sales) for 2016 reflecting an increase of $129.7 million, or 63.8%, compared to operating income of $203.4 million (14.0% of segment net sales) for 2015.
The increase in operating income was primarily attributable to higher sales volumes of approximately $77 million, savings from capital investments and cost reduction initiatives of approximately $27 million, lower material costs of approximately $23 million, lower restructuring, acquisition and integration-related, and other costs of approximately $23 million, and the favorable impact of reduced costs from investments in expansion of production capacity of approximately $6 million, partially offset by the net impact of unfavorable foreign exchange rates of approximately $16 million, the unfavorable net impact of price and product mix of approximately $6 million and approximately $5 million of costs associated with investments in new product development, sales personnel, and marketing

Tables referenced above, in order (Table 0 first):
<table><tr><td></td><td>2012</td><td>2011</td><td>2010</td></tr><tr><td>Net sales</td><td>$7,579</td><td>$7,132</td><td>$7,443</td></tr><tr><td>Operating profit</td><td>737</td><td>645</td><td>713</td></tr><tr><td>Operating margins</td><td>9.7%</td><td>9.0%</td><td>9.6%</td></tr><tr><td>Backlog at year-end</td><td>10,700</td><td>10,500</td><td>10,600</td></tr></table>
<table><tr><td></td><td colspan="5">Years Ended December 31,</td></tr><tr><td></td><td>2009</td><td>2008</td><td>2007</td><td>2006</td><td>2005</td></tr><tr><td></td><td colspan="5">(In millions)</td></tr><tr><td> Statement of Operations Data -1</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Revenues:</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Premiums</td><td>$26,460</td><td>$25,914</td><td>$22,970</td><td>$22,052</td><td>$20,979</td></tr><tr><td>Universal life and investment-type product policy fees</td><td>5,203</td><td>5,381</td><td>5,238</td><td>4,711</td><td>3,775</td></tr><tr><td>Net investment income</td><td>14,838</td><td>16,291</td><td>18,057</td><td>16,241</td><td>14,058</td></tr><tr><td>Other revenues</td><td>2,329</td><td>1,586</td><td>1,465</td><td>1,301</td><td>1,221</td></tr><tr><td>Net investment gains (losses)</td><td>-7,772</td><td>1,812</td><td>-578</td><td>-1,382</td><td>-112</td></tr><tr><td>Total revenues</td><td>41,058</td><td>50,984</td><td>47,152</td><td>42,923</td><td>39,921</td></tr><tr><td>Expenses:</td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Policyholder benefits and claims</td><td>28,336</td><td>27,437</td><td>23,783</td><td>22,869</td><td>22,236</td></tr><tr><td>Interest credited to policyholder account balances</td><td>4,849</td><td>4,788</td><td>5,461</td><td>4,899</td><td>3,650</td></tr><tr><td>Policyholder dividends</td><td>1,650</td><td>1,751</td><td>1,723</td><td>1,698</td><td>1,678</td></tr><tr><td>Other expenses</td><td>10,556</td><td>11,947</td><td>10,405</td><td>9,514</td><td>8,269</td></tr><tr><td>Total expenses</td><td>45,391</td><td>45,923</td><td>41,372</td><td>38,980</td><td>35,833</td></tr><tr><td>Income (loss) from continuing operations before provision for income tax</td><td>-4,333</td><td>5,061</td><td>5,780</td><td>3,943</td><td>4,088</td></tr><tr><td>Provision for income tax expense (benefit)</td><td>-2,015</td><td>1,580</td><td>1,675</td><td>1,027</td><td>1,156</td></tr><tr><td>Income (loss) from continuing operations, net of income tax</td><td>-2,318</td><td>3,481</td><td>4,105</td><td>2,916</td><td>2,932</td></tr><tr><td>Income (loss) from discontinued operations, net of income tax</td><td>40</td><td>-203</td><td>360</td><td>3,524</td><td>1,879</td></tr><tr><td>Net income (loss)</td><td>-2,278</td><td>3,278</td><td>4,465</td><td>6,440</td><td>4,811</td></tr><tr><td>Less: Net income (loss) attributable to noncontrolling interests</td><td>-32</td><td>69</td><td>148</td><td>147</td><td>97</td></tr><tr><td>Net income (loss) attributable to MetLife, Inc.</td><td>-2,246</td><td>3,209</td><td>4,317</td><td>6,293</td><td>4,714</td></tr><tr><td>Less: Preferred stock dividends</td><td>122</td><td>125</td><td>137</td><td>134</td><td>63</td></tr><tr><td>Net income (loss) available to MetLife, Inc.’s common shareholders</td><td>$-2,368</td><td>$3,084</td><td>$4,180</td><td>$6,159</td><td>$4,651</td></tr></table>
<table><tr><td></td><td>2016</td><td>2015</td><td>Change</td></tr><tr><td>First quarter</td><td>$2,172.0</td><td>1,881.2</td><td>15.5%</td></tr><tr><td>Second quarter</td><td>2,310.3</td><td>2,041.7</td><td>13.2%</td></tr><tr><td>Third quarter</td><td>2,294.1</td><td>2,150.7</td><td>6.7%</td></tr><tr><td>Fourth quarter</td><td>2,182.6</td><td>1,998.0</td><td>9.2%</td></tr><tr><td>Total year</td><td>$8,959.1</td><td>8,071.6</td><td>11.0%</td></tr></table>

Question: What is the growing rate of Interest credited to policyholder account balances in the years with the least Policyholder benefits and claims?
Answer: 0.34219
Reasoning program: subtract(4899,3650), divide(#0,3650)