Annual percent change in the Consumer Price Index for energy, 1991-2000 Percent change for 12 Year months ended December 1991 -7.4 1992 2.0 1993 -1.4 1994 2.2 1995 -1.3 1996 8.6 1997 -3.4 1998 -8.8 1999 13.4 2000 14.2