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The U.S. population increased by 27 percent between 1980 and 2002 , while the economy , measured by gross domestic product , nearly doubled in real terms during the same time period . Cases of type-2 diabetes increased from 4.6 percent to 6.1 percent in large cities between 1996 and 2002 , while abnormal blood lipid levels are reported in more than 18 percent of the adult population . The unit cost of scholarly journals increased 200 % between 1986 and 2002 , while the Consumer Price Index rose only 50 % . People who said they belonged to other religions , including Eastern faiths and Islam , Orthodox Christians , interdenominational Christians , and native-American faiths increased from 3 percent to 7 percent between 1993 and 2002 , while the number of people who said they were Jewish remained stable at slightly under 2 percent .