In the first half of 2015, there were 1,003 requests from courts and government agencies to remove content from Twitter.
Out of this, 72 percent came from the Turkish authorities. Twitter removal requests leads to tweets no longer being displayed in individual countries rather than being deleted altogether. In the United States, there only 25 requests in the first six months of the year. The number of content removal requests is soaring. In the second half of 2014, 13 percent of these requests were successful; between January and June, it was higher – 42 percent of requests were granted.
This chart shows the share of all Twitter content removal requests in the first half of 2015.
You will find more statistics at Statista