1988 1989 1990 1991 1992 1993 1994 March 121.5 128.9 136.6 143.4 149.1 154.1 157.9 June 123.1 130.5 137.1 144.6 149.5 154.2 157.8 September 126.0 132.2 140.8 145.8 151.4 155.3 159.0 December 126.0 133.3 141.6 146.6 151.9 155.6 -- Quarterly Average 124.2 131.2 139.0 145.1 150.5 154.8 158.2 Yearly Average 123.7 130.6 138.5 144.8 150.0 154.5 -- 12-month percentage change in the CPI 1988 1989 1990 1991 1992 1993 1994 March 4.9% 6.1% 6.0% 5.0% 4.0% 3.4% 2.5% June 4.5% 6.0% 5.1% 5.5% 3.4% 3.1% 2.3% September 5.2% 4.9% 6.5% 3.6% 3.8% 2.6% 2.4% December 4.5% 5.8% 6.2% 3.5% 3.6% 2.4% -- Quarterly Average 4.8% 5.7% 5.9% 4.4% 3.7% 2.9% -- Yearly Average 4.8% 5.6% 6.0% 4.5% 3.6% 3.0% -- Source: U.S. Bureau of Labor Statistics.