| Effective Date..............................................COLA Rate |
| |
| May 10, 2013 ........................................................1.9% |
| May 10, 2012 ........................................................3.1% |
| May 10, 2011 ........................................................2.3% |
| |
| May 10, 2010 ........................................................2.8% |
| May 10, 2009 ........................................................0.0% |
| May 10, 2008 ........................................................4.4% |
| May 10, 2007 ........................................................2.2% |
| May 10, 2006 ........................................................3.7% |
| May 10, 2005 ........................................................3.0% |
| May 10, 2004 ........................................................1.5% |
| May 10, 2003 ........................................................3.2% |
| May 10, 2002 ........................................................0.8% |
| May 10, 2001 ........................................................3.5% |
| May 10, 2000 ........................................................3.3% |
| |
| May 10, 1999 ........................................................1.6% |
| May 10, 1998........................................................ 1.1% |
| May 10, 1997........................................................ 3.0% |
| May 10, 1996........................................................ 2.6% |
| May 10, 1995........................................................ 3.0% |
| May 10, 1994........................................................ 2.3% |
| May 10, 1993........................................................ 3.2% |
| May 10, 1992........................................................ 2.7% |
| May 10, 1991 ........................................................5.1% |
| May 10, 1990 ........................................................5.2% |
| |
| May 10, 1989 ........................................................4.8% |
| May 10, 1988 ........................................................3.8% |
| May 10, 1987 ........................................................3.7% |
| May 10, 1986 ........................................................1.2% |
| May 10, 1985 ........................................................4.1% |
| May 10, 1984 ........................................................3.1% |
| May 10, 1983 ........................................................3.5% |
| May 10, 1982 ........................................................6.5% |
| May 10, 1981 ........................................................10.0% |
| May 10, 1980 ........................................................14.8% |
| |
| May 10, 1979 ........................................................10.7% |
| May 10, 1978 ........................................................ 6.6% |
