China's Premier Li Keqiang said it will be "very difficult" for the country's economy to grow at an annual rate of 6% or more in the current global climate, Reuters reported Sunday. "For China to maintain growth of 6% or more is very difficult against the current backdrop of a complicated international situation and a relatively high base, and this rate is at the forefront of the world's leading economies," Li said in an interview with Russian media that was posted on China's official government website . China is aiming for GDP growth this year of 6% to 6.5%. In the second quarter, GDP rose 6.2%, its slowest rate in 27 years. Li said the global slowdown and trade protectionism contributed to "certain downward pressure" felt by China's economy.