Jiang Zemin, Li Peng and Zhu Rongji led the nation in the 1990s. Under their administration, China's economic performance pulled an estimated 150 million peasants out of poverty and sustained an average annual gross domestic product growth rate of 11.2%. The country joined the World Trade Organization in 2001, and maintained its high rate of economic growth under Hu Jintao and Wen Jiabao's leadership in the 2000s. However, the growth also severely impacted the country's resources and environment, and caused major social displacement.