Facebook added about 50 million users worldwide during the April-June quarter. Facebook now has more than 950 million people using the service in a given month, 29 per cent more than a year ago.

The company said 543 million of them accessed the service through a mobile device, a 67 per cent increase.

Facebook also said it had a daily average of 552 million users in June, a 32 per cent increase from a year ago.

The latest numbers came Thursday as Facebook reported its quarterly earnings for the first time as a public company.

Here is a look at how the number of active users at Facebook has grown:

1 million -- End of 2004.

5.5 million -- End of 2005.

12 million -- End of 2006.

20 million -- April 2007.

50 million -- October 2007.

100 million -- August 2008.

150 million -- January 2009.

175 million -- February 2009.

200 million -- April 2009.

250 million -- July 2009.

300 million -- September 2009.

350 million -- End of 2009.

400 million -- February 2010.

500 million -- July 2010.

608 million -- End of 2010.

750 million -- July 2011.

800 million -- September 2011.

845 million -- End of 2011.

901 million -- March 2012.

955 million -- June 2012.

Source: Facebook Inc.