The wireless phone network in China has experienced an even higher growth rate. Since the first TACS cellular phone system was installed in 1987, cellular phone subscribers experienced an average 200% annual growth rate until 1993. After 1993, China's wireless phone subscribers nearly doubled each year. By the end of 2000, there were 85 million subscribers in China, which made it the second largest national market in the world. As mobile phone users reached 120.6 million at the end of July 2001 according to China’s Ministry of Information Industry (MII), China became the largest mobile communication market in the world, surpassing the 120.1 million users in the United States.