Why don't I see performance data for a Google Play app in China?

Google Play is blocked in China, preventing Apptopia (as well as other mobile data providers) from providing performance data.

Google and all of their services are blocked in China and hence we (as well as all other mobile data providers) do not have any data for Google Play in China. All android devices in China are using 3rd party app stores like Baidu, Tencent, Qihoo360 and 20+ others. We do not collect data for these 3rd party China only stores. Note: that we DO however have data for iPhone users in China which today makes up 20-25% of their mobile market.