March 3rd 2023 19.75%
January 1st 2023 19.50%
September 30th, 2022 19.25%
August 22nd, 2022 18.75%
June 15th, 2022 18.25%
May 16th, 2022 17.75%
January 1st, 2019 17.45%
October 1st, 2018 17.15%
July 1st, 2018 16.85%
May 1st, 2018 16.65%
November 1st, 2015 16.50%
May 1st, 2015 16.65%
December 10th, 2013 16.75%
September 1st, 2013 16.65%
March 1st, 2013 16.40%
October 1st, 2011 16.50%
July 1st, 2011 16.00%
April 1st, 2011 15.50%
December 20th, 2010 14.75%
November 15th, 2010 14.25%
January 1st, 2009 13.75%