Annual consumption of personal care products has jumped to 40.5 packages per person in 2000, up from 38.4 packages per person in 1990, and according to a new study by Kline & Company, changes in the demographic composition of the U.S. are largely responsible for this growth. According to the study, Demographic Series for the Personal Care Industry, while the U.S. population grew by 13.2% from 1990 to 2000, the unit volume sales of cosmetics and toiletries expanded by 19.3% during the same p...