Year	Number
1996	53
1998	52.2388076782227
2000	56.2189064025879
2002	55.2238807678223
2003	48.2587051391602
2004	50.961540222168
2005	48.5576934814453
2006	53.8461532592773
2007	54.3269233703613
2008	52.8846168518066
2009	51.6587677001953
2010	51.1848335266113
2011	52.582160949707
2012	55.3990592956543
2013	53.9906120300293
2014	54.1871910095215
2015	52.2167472839355
2016	52.709358215332
2017	52.709358215332
2018	50.4854354858398
2019	53.1400947570801
2020	54.5893707275391
2021	57.0048294067383
2022	57.9710159301758