Year	Number
1996	28.7234039306641
1998	31.3829784393311
2000	43.3862419128418
2002	50.7936515808105
2003	51.2562828063965
2004	53.3980598449707
2005	47.5728149414063
2006	44.9275360107422
2007	63.2850227355957
2008	63.461540222168
2009	43.1279602050781
2010	35.0710906982422
2011	38.8625602722168
2012	43.6018943786621
2013	30.8056869506836
2014	10.4761905670166
2015	10.9523811340332
2016	21.9047622680664
2017	28.5714282989502
2018	35.3773574829102
2019	35.3773574829102
2020	33.4905662536621
2021	28.7735843658447
2022	30.1886787414551