Year	Number
1996	45.9016380310059
1998	38.7978134155273
2000	44.2622947692871
2002	28.1081085205078
2003	31.3513507843018
2004	25.8706474304199
2005	33.8235282897949
2006	25.8536586761475
2007	24.2718448638916
2008	21.8446598052979
2009	31.1004791259766
2010	25.3588523864746
2011	23.222749710083
2012	25.5924167633057
2013	23.6966819763184
2014	19.7115383148193
2015	19.5238094329834
2016	16.1904754638672
2017	11.9047622680664
2018	7.61904764175415
2019	7.61904764175415
2020	6.1904764175415
2021	6.1904764175415
2022	9.90566062927246