A line chart showing year-over year change in the Consumer Price Index by sector. In the education sector, the year-over-year price change was 4.9 percent in 1997, 5.06 percent in 1998, 4.81 percent in 1999, 4.97 percent in 2000, 4.98 percent in 2001, and 5.86 percent in 2002. In the health care service sector, the year-over-year price change was 2.94 percent in 1997, 2.77 percent in 1998, 3.54 percent in 1999, 3.77 percent in 2000, 4.59 percent in 2001, and 4.71 percent in 2002. In the communication sector, the year-over-year price change was 1.34 percent in 1997, minus 1.16 percent in 1998, minus 2.45 percent in 1999, minus 1.99 percent in 2000, minus 1.68 percent in 2001, and minus 0.61 percent in 2001. In the apparel sector, the year-over-year price change was 0 percent in 1997, 0.15 percent in 1998, minus 1.59 percent in 1999, minus 0.46 percent in 2000, minus 0.64 percent in 2001, and minus 3.6 percent in 2002.