China's exports were able to show year over year growth of 7.6% in the first quarter of 2012, a sharp decline from 20.3% in 2011. As a result IMF estimates of China's long term current account surplus which were about 7% of GDP in the World Economic Outlook in Sept. 2011 may now be lowered to about 5%. This would reduce the strength of arguments that the yen is undervalued. The IMF is now engaged in making estimates for current account balances till 2017. China's current account surplus peaked at 10.1% of GDP in 2007 and the IMF forecasts in 2008 were for this to remain at 10% for the long term. The situation is rapidly changing because the most recent estimates from China's State Administration for Foreign Exchange show the actual current account surplus for 2011 at 2.8% of GDP. Since the 2010 Group of 20 nations summit meeting when China was pressured to reduce its trade surplus and let the yuan appreciate, the yuan has appreciated by 8.3%.