Google updates Toolbar Page rank every 3 or so months, but it didn't happen from last 6 months.
Following are the Page rank updates Google made.
- 4 February 2013
- 7 November 2012
- 2 August 2012
- 2 May 2012
- 7 February 2012
- 7 November 2011
- 1st Week August 2011
- JULY 2011
- JUNE 2011
- JANUARY 2011
- April 2010
- Dec 31, 2009
- 30 October 2009