What is the age of a gram of gold in 90 yuan?
2000。 One gram of gold and 200 yuan was sold in 90 yuan in 2007, one gram in 2000, one gram after 108 yuan, and one gram in 2002 128 yuan. This price has been sold for three years. In 2005, gold rose from 145 to 200 yuan in 2007. When the American financial crisis broke out in 2008, gold soared to a record high of 65,438 yuan.