January - June 2020 new
January - December 2019 (Usage data for 2019 and beyond is only available in COUNTER 5 format)
January - March 2019 (COUNTER 4 format)
January - December 2018
January - December 2017
January - December 2016
January - December 2015
January - December 2014
January - December 2013
January - December 2012
January - December 2011
January - December 2010
January - December 2009
January - December 2008
January - December 2007
January - December 2006
January - December 2005
January - December 2004
November - December 2003