Year	Number
1996	39.2473106384277
1998	33.1550788879395
2000	38.2978706359863
2002	40.7407417297363
2003	42.8571434020996
2004	44.8275871276855
2005	48.7804870605469
2006	49.2682914733887
2007	51.4563102722168
2008	52.9126205444336
2009	48.8038291931152
2010	45.238094329834
2011	45.971565246582
2012	44.5497627258301
2013	47.8672981262207
2014	51.9230766296387
2015	51.9047622680664
2016	51.4285697937012
2017	51.4285697937012
2018	48.0952377319336
2019	47.6190490722656
2020	51.4285697937012
2021	51.4285697937012
2022	55.6603775024414