Year	Number
1996	37
1998	40.7960205078125
2000	37.3134346008301
2002	31.8407955169678
2003	32.3383102416992
2004	28.8461532592773
2005	33.6538467407227
2006	33.1730766296387
2007	32.211540222168
2008	34.1346168518066
2009	34.1232223510742
2010	45.971565246582
2011	47.417839050293
2012	46.478874206543
2013	52.582160949707
2014	56.6502456665039
2015	56.6502456665039
2016	55.1724128723145
2017	54.1871910095215
2018	56.7961158752441
2019	56.5217399597168
2020	57.0048294067383
2021	58.937198638916
2022	60.8695640563965