467 million Twitter posts from 20 million users covering a 7 month period from June 1 2009 to December 31 2009. We estimate this is about 20-30% of all public tweets published on Twitter during the particular time frame.
For each public tweet the following information is available:
|Number of users||17,069,982|
|Number of tweets||476,553,560|
|Number of URLs||181,611,080|
|Number of Hashtags||49,293,684|
|Number of re-tweets||71,835,017|