All comparisons between 1992–93, 1995–96, and 1999–2000 were made using constant 1999 dollars based on the Consumer Price Index for All Urban Consumers (CPI-U) table provided by the U.S. Department of Labor, Bureau of Labor Statistics. The average Consumer Price Index was 140.3 in 1992 (for the 1992–93 academic year), 152.4 in 1995 (for the 1995–96 academic year), and 166.6 in 1999 (for the 1999–2000 academic year). The multiplier used to convert 1992 into 1999 dollars was 1.188, and the multiplier used to convert 1995 into 1999 dollars was 1.093. Standard errors also were adjusted for inflation in the same manner.