9·In the past, every ten-percentage-point increase in cigarette prices in the country of Coponia has decreased per capita sales of cigarettes by four percent.
过去,科普尼亚的香烟价格每上涨10个百分点,人均香烟销量就会下降4%。
10·The per capita income reached 12,670 yuan, 40 times more than in the 1990s.