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Trustees Reports
Cost-of-living adjustments
Average Wage Index
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The table below shows estimated future cost-of-living adjustments
(COLAs) and estimated future percentage increases
in the national average wage index (AWI). These estimates are derived from the
"intermediate" assumptions in the 2008 Trustees Report.
The AWI is used to index an individual's earnings through age 60
in the benefit calculation formula, and the COLA is used to increase benefits
annually. The COLA shown for a year is effective for December of
that year, but is payable in January of the following year.
The COLA for December 2007, as shown below,
was determined in October 2007. All other figures shown are estimates.
COLAs & AWI increases under the intermediate assumptions of the
2008 Trustees Report
| Calendar year |
COLA
(percent) |
Increase in
AWI (percent) |
| 2007 |
2.3 |
4.3 |
| 2008 |
2.7 |
4.1 |
| 2009 |
2.5 |
4.1 |
| 2010 |
2.8 |
4.0 |
| 2011 |
2.8 |
3.9 |
| 2012 |
2.8 |
3.9 |
| 2013 |
2.8 |
4.0 |
| 2014 |
2.8 |
3.9 |
| 2015 |
2.8 |
3.8 |
| 2016 |
2.8 |
3.8 |
| 2017 |
2.8 |
3.8 |
| 2018 and later |
2.8 |
3.9 a |
a Average increase.
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