Year	Number
1996	46.2365608215332
1998	47.5935821533203
2000	48.9361686706543
2002	47.6190490722656
2003	39.6825408935547
2004	32.5123138427734
2005	35.1219520568848
2006	24.8780479431152
2007	28.6407775878906
2008	29.1262130737305
2009	24.8803825378418
2010	28.0952377319336
2011	23.222749710083
2012	26.5402851104736
2013	22.748815536499
2014	29.8076915740967
2015	37.1428565979004
2016	38.0952377319336
2017	38.0952377319336
2018	34.2857131958008
2019	34.761905670166
2020	35.238094329834
2021	36.6666679382324
2022	39.1509437561035