What is the conclusion of this article? I am not clear on the usage of 偏上 in the following sentence:


  此前，《时代》周刊和皮尤研究中心也分别做过类似国家形象的调查。结果均显示，中国的受欢迎程度排名中偏上，但都远远落后于日本的排名。


My translation: Prior to this research, ShiDai publication and Pew did a separate investigation of... Similar countries? All of the results show that China's acceptance rating is... Skewed/biased/prejudiced? But all still lag behind Japan?

Thanks for your help.
此前，《时代》周刊和皮尤研究中心也分别做过类似国家形象的调查。


Previous to this (research), Time Magazine and Pew Research Center had each done similar national image surveys.


  结果均显示，中国的受欢迎程度排名中偏上，但都远远落后于日本的排名。


The results all showed, China's popularity is middle to upper, but ranks far behind Japan.