Year	Number
1996	34.9462356567383
1998	48.1283416748047
2000	32.4468078613281
2002	35.4497337341309
2003	33.862434387207
2004	34.4827575683594
2005	26.8292675018311
2006	25.8536586761475
2007	29.1262130737305
2008	28.6407775878906
2009	28.7081336975098
2010	37.6190490722656
2011	24.1706161499023
2012	27.488151550293
2013	29.3838863372803
2014	35.5769233703613
2015	36.1904754638672
2016	40.9523811340332
2017	42.3809509277344
2018	35.7142868041992
2019	30.9523811340332
2020	28.0952377319336
2021	27.619047164917
2022	29.7169818878174