ANALOG DEVICES, INC.  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) 71 The total intrinsic value of options exercised (i. e.  the difference between the market price at exercise and the price paid by the employee to exercise the options) during fiscal 2016, 2015 and 2014 was $46.6 million, $99.2 million and $130.6 million, respectively, and the total amount of proceeds received by the Company from exercise of these options during fiscal 2016, 2015 and 2014 was $61.5 million, $122.6 million and $200.1 million, respectively.
A summary of the Company’s restricted stock unit award activity as of October 29, 2016 and changes during the fiscal year then ended is presented below:
## Table 0 ##
As of October 29, 2016, there was $112.3 million of total unrecognized compensation cost related to unvested sharebased awards comprised of stock options and restricted stock units.
That cost is expected to be recognized over a weightedaverage period of 1.4 years.
The total grant-date fair value of shares that vested during fiscal 2016, 2015 and 2014 was approximately $62.8 million, $65.6 million and $57.4 million, respectively.
Common Stock Repurchases The Company’s common stock repurchase program has been in place since August 2004.
In the aggregate, the Board of Directors has authorized the Company to repurchase $6.2 billion of the Company’s common stock under the program.
The Company may repurchase outstanding shares of its common stock from time to time in the open market and through privately negotiated transactions.
Unless terminated earlier by resolution of the Company’s Board of Directors, the repurchase program will expire when the Company has repurchased all shares authorized under the program.
As of October 29, 2016, the Company had repurchased a total of approximately 147.0 million shares of its common stock for approximately $5.4 billion under this program.
An additional $792.5 million remains available for repurchase of shares under the current authorized program.
The repurchased shares are held as authorized but unissued shares of common stock.
As a result of the Company's planned acquisition of Linear Technology Corporation, see Note 6, Acquisitions, of these Notes to Consolidated Financial Statements, the Company temporarily suspended the common stock repurchase plan in the third quarter of 2016.
The Company also, from time to time, repurchases shares in settlement of employee minimum tax withholding obligations due upon the vesting of restricted stock units or the exercise of stock options.
The withholding amount is based on the employees minimum statutory withholding requirement.
Any future common stock repurchases will be dependent upon several factors, including the Company's financial performance, outlook, liquidity and the amount of cash the Company has available in the United States.
Preferred Stock The Company has 471,934 authorized shares of $1.00 par value preferred stock, none of which is issued or outstanding.
The Board of Directors is authorized to fix designations, relative rights, preferences and limitations on the preferred stock at the time of issuance.
Item 7.
Management’s Discussion and Analysis of Financial Condition and Results of Operations Consolidated Results of Operations and Financial Condition Overview We are a global market leader in the design, development, manufacture, sale, service and support of commercial jetliners, military aircraft, satellites, missile defense, human space flight and launch systems and services.
We are one of the two major manufacturers of 100+ seat airplanes for the worldwide commercial airline industry and one of the largest defense contractors in the U. S.  While our principal operations are in the U. S. , we conduct operations in an expanding number of countries and rely on an extensive network of non-U.
S.  partners, key suppliers and subcontractors.
Our strategy is centered on successful execution in healthy core businesses – Commercial Airplanes (BCA), Defense, Space & Security (BDS), and Global Services (BGS) – supplemented and supported by Boeing Capital (BCC).
Taken together, these core businesses have historically generated substantial earnings and cash flow that permit us to invest in new products and services.
We focus on producing the products and providing the services that the market demands, and continue to find new ways to improve efficiency and quality to provide a fair return for our shareholders.
BCA is committed to being the leader in commercial aviation by offering airplanes and services that deliver superior design, efficiency and value to customers around the world.
BDS integrates its resources in defense, intelligence, communications, security, space and services to deliver capability-driven solutions to its customers at reduced costs.
Our BDS strategy is to leverage our core businesses to capture key next-generation programs while expanding our presence in adjacent and international markets, underscored by an intense focus on growth and productivity.
BGS provides support for commercial, defense and space customers through innovative, comprehensive, and cost-competitive product and service solutions.
Our strategy also benefits us as the cyclicality of commercial and defense markets sometimes offset.
BCC facilitates, arranges, structures and provides selective financing solutions for our Boeing customers.
Consolidated Results of Operations The following table summarizes key indicators of consolidated results of operations:
## Table 1 ##
(1) These measures exclude certain components of pension and other postretirement benefit expense.
See page 39 - 40 for important information about these non-GAAP measures and reconciliations to the most comparable GAAP measures.
Accounting Quantity The accounting quantity is our estimate of the quantity of airplanes that will be produced for delivery under existing and anticipated contracts.
The determination of the accounting quantity is limited by the ability to make reasonably dependable estimates of the revenue and cost of existing and anticipated contracts.
It is a key determinant of the gross margins we recognize on sales of individual airplanes throughout a program’s life.
Estimation of each program’s accounting quantity takes into account several factors that are indicative of the demand for that program, including firm orders, letters of intent from prospective customers and market studies.
We review our program accounting quantities quarterly.
The accounting quantity for each program may include units that have been delivered, undelivered units under contract, and units anticipated to be under contract in the reasonable future (anticipated orders).
In developing total program estimates, all of these items within the accounting quantity must be considered.
The following table provides details of the accounting quantities and firm orders by program as of December 31.
Cumulative firm orders represent the cumulative number of commercial jet aircraft deliveries plus undelivered firm orders.
## Table 2 ##
* At December 31, 2017, the 747 accounting quantity includes one already completed aircraft which is being remarketed.
** The accounting quantity for the 777X will be determined in the year of first airplane delivery, targeted for 2020.
Program Highlights 737 Program The accounting quantity for the 737 program increased by 800 units during 2017 due to the program’s normal progress of obtaining additional orders and delivering airplanes.
We are currently producing at a rate of 47 per month and plan to increase to 52 per month in 2018.
We plan to further increase the rate to 57 per month in 2019.
We delivered the first 737 MAX 8 in May 2017 and announced the launch of the 737 MAX 10 in June 2017.747 Program During the fourth quarter of 2017, we received firm orders and commitments for 15 aircraft and we increased the program accounting quantity by 15 aircraft.
The program accounting quantity now includes aircraft scheduled to be produced through 2021.
We are currently producing at a rate of 0.5 aircraft per month, having reduced the rate from 1.0 per month in September 2016.
In 2016 and 2015, we recorded reach-forward losses of $1,258 million and $885 million as lower than expected demand for large commercial passenger and freighter aircraft and slower-than-expected growth of global freight traffic

<table><tr><td></td><td>RestrictedStock UnitsOutstanding(in thousands)</td><td>Weighted-Average Grant-Date Fair ValuePer Share</td></tr><tr><td>Restricted stock units outstanding at October 31, 2015</td><td>2,698</td><td>$47.59</td></tr><tr><td>Units granted</td><td>1,099</td><td>$51.59</td></tr><tr><td>Restrictions lapsed</td><td>-905</td><td>$44.30</td></tr><tr><td>Forfeited</td><td>-202</td><td>$50.34</td></tr><tr><td>Restricted stock units outstanding at October 29, 2016</td><td>2,690</td><td>$50.11</td></tr></table>
<table><tr><td>Years ended December 31,</td><td>2017</td><td>2016</td><td>2015</td></tr><tr><td>Revenues</td><td>$93,392</td><td>$94,571</td><td>$96,114</td></tr><tr><td>GAAP</td><td></td><td></td><td></td></tr><tr><td>Earnings from operations</td><td>10,278</td><td>5,834</td><td>7,443</td></tr><tr><td>Operating margins</td><td>11.0%</td><td>6.2%</td><td>7.7%</td></tr><tr><td>Effective income tax rate</td><td>18.4%</td><td>12.1%</td><td>27.7%</td></tr><tr><td>Net earnings</td><td>$8,197</td><td>$4,895</td><td>$5,176</td></tr><tr><td>Diluted earnings per share</td><td>$13.43</td><td>$7.61</td><td>$7.44</td></tr><tr><td>Non-GAAP<sup>-1</sup></td><td></td><td></td><td></td></tr><tr><td>Core operating earnings</td><td>$8,970</td><td>$5,464</td><td>$7,741</td></tr><tr><td>Core operating margins</td><td>9.6%</td><td>5.8%</td><td>8.1%</td></tr><tr><td>Core earnings per share</td><td>$12.04</td><td>$7.24</td><td>$7.72</td></tr></table>
<table><tr><td></td><td colspan="6">Program</td></tr><tr><td></td><td>737</td><td>747*</td><td>767</td><td>777</td><td>777X</td><td>787</td></tr><tr><td>2017</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Program accounting quantities</td><td>9,800</td><td>1,570</td><td>1,171</td><td>1,625</td><td>**</td><td>1,400</td></tr><tr><td>Undelivered units under firm orders</td><td>4,668</td><td>12</td><td>98</td><td>102</td><td>326</td><td>658</td></tr><tr><td>Cumulative firm orders</td><td>11,400</td><td>1,554</td><td>1,204</td><td>1,636</td><td>326</td><td>1,294</td></tr><tr><td>2016</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Program accounting quantities</td><td>9,000</td><td>1,555</td><td>1,159</td><td>1,625</td><td>**</td><td>1,300</td></tr><tr><td>Undelivered units under firm orders</td><td>4,452</td><td>28</td><td>93</td><td>136</td><td>306</td><td>700</td></tr><tr><td>Cumulative firm orders</td><td>10,655</td><td>1,556</td><td>1,189</td><td>1,596</td><td>306</td><td>1,200</td></tr><tr><td>2015</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Program accounting quantities</td><td>8,400</td><td>1,574</td><td>1,147</td><td>1,650</td><td>**</td><td>1,300</td></tr><tr><td>Undelivered units under firm orders</td><td>4,392</td><td>20</td><td>80</td><td>218</td><td>306</td><td>779</td></tr><tr><td>Cumulative firm orders</td><td>10,105</td><td>1,539</td><td>1,163</td><td>1,579</td><td>306</td><td>1,142</td></tr></table>

Question: What's the sum of Earnings from operations GAAP of 2016, and Cumulative firm orders 2015 of Program ?
Answer: 15939