1992417113878541973458889 1993394863553934283211190 1994423183884934563539391 1995452614128237733750991 1996507324601542784173791 1997559295042750084541990 1998670755863467305190489 1999802616986992746059587 20008530077295128106448583 20017578671890121285976283 2002628106037695775079984 20037654664458108935356583 20048650774186123906179683 20058004774831134926133982 20069265180029149536507681 20078683587626149657266183 20085915462056108675118982 2009*384663808655463254085 2010305582878940562473386 2011247502300726592034888 2012215442020919511825890 2013211911898416371734791 2014220012009319371815690 * Up to and including 2008, this data was collected quarterly. After 2009, this data was collected on an annual basis.