Entergy Mississippi, Inc.  Management’s Financial Discussion and Analysis 368 Entergy Mississippi’s receivables from or (payables to) the money pool were as follows as of December 31 for each of the following years.
## Table 0 ##
See Note 4 to the financial statements for a description of the money pool.
Entergy Mississippi has four separate credit facilities in the aggregate amount of $102.5 million scheduled to expire May 2017.
No borrowings were outstanding under the credit facilities as of December 31, 2016.
In addition, Entergy Mississippi is a party to an uncommitted letter of credit facility as a means to post collateral to support its obligations under MISO.
As of December 31, 2016, a $7.1 million letter of credit was outstanding under Entergy Mississippi’s uncommitted letter of credit facility.
See Note 4 to the financial statements for additional discussion of the credit facilities.
Entergy Mississippi obtained authorizations from the FERC through October 2017 for short-term borrowings not to exceed an aggregate amount of $175 million at any time outstanding and long-term borrowings and security issuances.
See Note 4 to the financial statements for further discussion of Entergy Mississippi’s short-term borrowing limits.
State and Local Rate Regulation and Fuel-Cost Recovery The rates that Entergy Mississippi charges for electricity significantly influence its financial position, results of operations, and liquidity.
Entergy Mississippi is regulated and the rates charged to its customers are determined in regulatory proceedings.
A governmental agency, the MPSC, is primarily responsible for approval of the rates charged to customers.
Formula Rate Plan In June 2014, Entergy Mississippi filed its first general rate case before the MPSC in almost 12 years.
The rate filing laid out Entergy Mississippi’s plans for improving reliability, modernizing the grid, maintaining its workforce, stabilizing rates, utilizing new technologies, and attracting new industry to its service territory.
Entergy Mississippi requested a net increase in revenue of $49 million for bills rendered during calendar year 2015, including $30 million resulting from new depreciation rates to update the estimated service life of assets.
In addition, the filing proposed, among other things: 1) realigning cost recovery of the Attala and Hinds power plant acquisitions from the power management rider to base rates; 2) including certain MISO-related revenues and expenses in the power management rider; 3) power management rider changes that reflect the changes in costs and revenues that will accompany Entergy Mississippi’s withdrawal from participation in the System Agreement; and 4) a formula rate plan forward test year to allow for known changes in expenses and revenues for the rate effective period.
Entergy Mississippi proposed maintaining the current authorized return on common equity of 10.59%.
In October 2014, Entergy Mississippi and the Mississippi Public Utilities Staff entered into and filed joint stipulations that addressed the majority of issues in the proceeding.
The stipulations provided for: ?
an approximate $16 million net increase in revenues, which reflected an agreed upon 10.07% return on common equity; ?
revision of Entergy Mississippi’s formula rate plan by providing Entergy Mississippi with the ability to reflect known and measurable changes to historical rate base and certain expense amounts; resolving uncertainty around and obviating the need for an additional rate filing in connection with Entergy Mississippi’s withdrawal from participation in the System Agreement; updating depreciation rates; and moving costs associated with the Attala and Hinds generating plants from the power management rider to base rates;
## Table 1 ##
The accumulated benefit obligation for all defined benefit retirement pension plans was $11,763 and $10,436 as of June 30, 2012 and 2011, respectively.
Pension plans with accumulated benefit obligations in excess of plan assets and plans with projected benefit obligations in excess of plan assets consist of the following:
## Table 2 ##
Net Periodic Benefit Cost.
Components of the net periodic benefit cost were as follows:
## Table 3 ##
Amounts in millions of dollars except per share amounts or as otherwise specified.

<table><tr><td>2016</td><td>2015</td><td>2014</td><td>2013</td></tr><tr><td>(In Thousands)</td></tr><tr><td>$10,595</td><td>$25,930</td><td>$644</td><td>-$3,536</td></tr></table>
<table><tr><td></td><td colspan="2">Pension Benefits</td><td colspan="2">Other Retiree Benefits</td></tr><tr><td>Years ended June 30</td><td>2012</td><td>2011</td><td>2012</td><td>2011</td></tr><tr><td>CLASSIFICATION OF NET AMOUNT RECOGNIZED</td><td></td><td></td><td></td><td></td></tr><tr><td>Noncurrent assets</td><td>$128</td><td>$168</td><td>$—</td><td>$—</td></tr><tr><td>Current liability</td><td>-43</td><td>-47</td><td>-23</td><td>-24</td></tr><tr><td>Noncurrent liability</td><td>-5,684</td><td>-4,388</td><td>-3,270</td><td>-1,887</td></tr><tr><td>NET AMOUNT RECOGNIZED</td><td>-5,599</td><td>-4,267</td><td>-3,293</td><td>-1,911</td></tr><tr><td>AMOUNTS RECOGNIZED IN ACCUMULATED OTHER COMPREHENSIVE INCOME (AOCI)</td><td></td><td></td><td></td><td></td></tr><tr><td>Net actuarial loss</td><td>$4,010</td><td>$2,315</td><td>$3,565</td><td>$2,181</td></tr><tr><td>Prior service cost /(credit)</td><td>261</td><td>354</td><td>-75</td><td>-92</td></tr><tr><td>NET AMOUNTS RECOGNIZED IN AOCI</td><td>4,271</td><td>2,669</td><td>3,490</td><td>2,089</td></tr><tr><td>CHANGE IN PLAN ASSETS AND BENEFIT OBLIGATIONS RECOGNIZED IN ACCUMULATED OTHER COMPREHENSIVE INCOME (AOCI)</td><td></td><td></td><td></td><td></td></tr><tr><td>Net actuarial loss /(gain) - current year</td><td>$2,009</td><td>$-827</td><td>$1,516</td><td>$-60</td></tr><tr><td>Prior service cost/(credit) - current year</td><td>-44</td><td>93</td><td>—</td><td>7</td></tr><tr><td>Amortization of net actuarial loss</td><td>-102</td><td>-154</td><td>-99</td><td>-96</td></tr><tr><td>Amortization of prior service (cost) / credit</td><td>-21</td><td>-18</td><td>20</td><td>18</td></tr><tr><td>Settlement / curtailment cost</td><td>-6</td><td>—</td><td>—</td><td>—</td></tr><tr><td>Currency translation and other</td><td>-234</td><td>262</td><td>-36</td><td>20</td></tr><tr><td>TOTAL CHANGE IN AOCI</td><td>1,602</td><td>-644</td><td>1,401</td><td>-111</td></tr><tr><td>NET AMOUNTS RECOGNIZED IN PERIODIC BENEFIT COST AND AOCI</td><td>2,036</td><td>-106</td><td>1,417</td><td>-124</td></tr></table>
<table><tr><td></td><td colspan="2">Accumulated BenefitObligation Exceeds theFair Value of Plan Assets</td><td colspan="2">Projected BenefitObligation Exceeds theFair Value of Plan Assets</td></tr><tr><td>June 30</td><td>2012</td><td>2011</td><td>2012</td><td>2011</td></tr><tr><td>Projected benefit obligation</td><td>$11,623</td><td>$6,817</td><td>$12,310</td><td>$10,650</td></tr><tr><td>Accumulated benefit obligation</td><td>10,009</td><td>5,923</td><td>10,533</td><td>8,940</td></tr><tr><td>Fair value of plan assets</td><td>6,013</td><td>2,845</td><td>6,583</td><td>6,214</td></tr></table>
<table><tr><td></td><td colspan="3">Pension Benefits</td><td colspan="3">Other Retiree Benefits</td></tr><tr><td>Years ended June 30</td><td>2012</td><td>2011</td><td>2010</td><td>2012</td><td>2011</td><td>2010</td></tr><tr><td>Service cost</td><td>$267</td><td>$270</td><td>$218</td><td>$142</td><td>$146</td><td>$103</td></tr><tr><td>Interest cost</td><td>611</td><td>588</td><td>579</td><td>276</td><td>270</td><td>253</td></tr><tr><td>Expected return on plan assets</td><td>-573</td><td>-492</td><td>-437</td><td>-434</td><td>-431</td><td>-429</td></tr><tr><td>Prior service cost /(credit) amortization</td><td>21</td><td>18</td><td>15</td><td>-20</td><td>-18</td><td>-21</td></tr><tr><td>Net actuarial loss amortization</td><td>102</td><td>154</td><td>91</td><td>99</td><td>96</td><td>20</td></tr><tr><td>Curtailments, settlements and other</td><td>6</td><td>—</td><td>3</td><td>27</td><td>3</td><td>14</td></tr><tr><td>GROSS BENEFIT COST/(CREDIT)</td><td>434</td><td>538</td><td>469</td><td>90</td><td>66</td><td>-60</td></tr><tr><td>Dividends on ESOP preferred stock</td><td>—</td><td>—</td><td>—</td><td>-74</td><td>-79</td><td>-83</td></tr><tr><td>NET PERIODIC BENEFIT COST/(CREDIT)</td><td>434</td><td>538</td><td>469</td><td>16</td><td>-13</td><td>-143</td></tr></table>

Question: What is the difference between the greatest Service cost in 2012 and 2011?
Answer: 3.0