Year	Number
1996	0
1998	0
2000	30.348258972168
2002	45.2736320495605
2003	42.7860679626465
2004	35.5769233703613
2005	30.769229888916
2006	40.3846168518066
2007	45.6730766296387
2008	47.5961532592773
2009	44.0758285522461
2010	42.1800956726074
2011	45.5399055480957
2012	44.1314544677734
2013	43.1924896240234
2014	43.8423652648926
2015	43.8423652648926
2016	44.8275871276855
2017	48.2758636474609
2018	50
2019	51.2077293395996
2020	52.6570053100586
2021	54.5893707275391
2022	55.5555572509766