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Inflation Data

Consumer Price Indexes

Retirement benefit cost-of-living adjustments (COLAs) are determined by the consumer price indexes calculated and maintained by the U.S. Bureau of Labor Statistics.  The Consumer Price Index (CPI) is a measure of the changes in prices of all goods and services purchased for consumption by urban households. We update this page in early March of each year.

Separate indexes are produced for regional urban areas and the nation as a whole.  Indexes are further specified "all urban consumers" (CPI-U), and "urban wage-earners and clerical workers" (CPI-W).  The indexes below are used to determine annual benefit increases for Plan 2 and 3, the Washington State Patrol, and a handful of Plan 1 retirees who selected a benefit payment option that provides a Plan 2-style COLA.

  
Annual Inflation
  Index Change Percentage
Change
Year Seattle-Tacoma-Bremerton CPI-W U.S. City CPI-W Seattle-Tacoma-Bremerton CPI-W U.S. City CPI-W
2013 706.291 683.087 1.22% 1.37%
2012 697.784 673.868 2.54% 2.10%
2011 680.504 660.005 3.17% 3.56%
2010 659.589 637.342 0.78% 2.07%
2009 654.472 624.423 0.44% (0.67%)
2008 651.608 628.661 4.48% 4.09%
2007 623.65 603.982 3.79% 2.86%
2006 600.9 587.2 3.73% 3.22%
2005 579.3 568.9 3.02% 3.53%
2004 562.3 549.5 1.57% 2.60%
2003 553.6 535.6 1.41% 2.23%
2002 545.9 523.9 1.81% 1.37%
2001 536.2 516.8 3.55% 2.72%
2000 517.8 503.1 3.75% 3.48%
1999 499.1 486.2 3.10% 2.23%
1998 484.1 475.6 2.63% 1.34%
1997 471.7 469.3 3.10% 2.22%
1996 457.5 459.1 3.30% 2.91%
1995 442.9 446.1 2.90% 2.84%
1994 430.4 433.8 3.66% 2.53%
1993 415.2 423.1 2.98% 2.82%
1992 403.2 411.5 3.54% 2.90%
1991 389.4 399.9 5.53% 4.03%
1990 369 384.4 7.11% 5.26%
1989 344.5 365.2 4.68% 4.82%
1988 329.1 348.4 3.30% 4.00%
1987 318.6 335 2.35% 3.59%
1986 311.3 323.4 0.71% 1.54%
1985 309.1 318.5 2.08% 3.54%
1984 302.8 307.6 3.27% 3.43%
1983 293.2 297.4 (0.27%) 3.05%
1982 294 288.6 6.48% 5.99%
1967 100 100 2.99% 2.88%