Year	Number
1996	36.5
1998	43.2835807800293
2000	35.8208961486816
2002	26.8656711578369
2003	27.3631839752197
2004	23.0769233703613
2005	23.0769233703613
2006	25.480770111084
2007	21.1538467407227
2008	21.634614944458
2009	17.0616111755371
2010	17.0616111755371
2011	15.023473739624
2012	15.4929580688477
2013	15.023473739624
2014	11.822660446167
2015	12.3152713775635
2016	12.3152713775635
2017	9.85221672058105
2018	5.82524251937866
2019	6.7632851600647
2020	4.34782600402832
2021	1.44927537441254
2022	2.4154589176178