Year	Number
1996	75.4098358154297
1998	79.7814178466797
2000	80.3278656005859
2002	75.1351318359375
2003	80.5405426025391
2004	78.1094512939453
2005	72.0588226318359
2006	67.3170700073242
2007	61.6504859924316
2008	59.2233009338379
2009	59.3301429748535
2010	62.6794242858887
2011	60.6635055541992
2012	63.0331764221191
2013	62.5592422485352
2014	55.769229888916
2015	46.1904754638672
2016	46.1904754638672
2017	45.238094329834
2018	48.5714302062988
2019	48.0952377319336
2020	50.9523811340332
2021	55.7142868041992
2022	61.3207550048828