In 2007, on UN data, China’s total industrial production was only 62% of the US level. By 2011, the latest available comparable statistics, China’s industrial output had risen to 120% of the US level. China’s industrial production in 2011 was $2.9 trillion compared to $2.4 trillion in the US – this data is shown in Figure 1.
http://ablog.typepad.com/keytrendsinglobalisation/2013/09/china-has-overtaken-the-us.html