Year	Number
1996	7.97872352600098
1998	5.31914901733398
2000	33.862434387207
2002	24.3386249542236
2003	29.6482410430908
2004	32.0388336181641
2005	28.6407775878906
2006	30.4347820281982
2007	28.9855079650879
2008	23.0769233703613
2009	24.1706161499023
2010	25.1184825897217
2011	22.748815536499
2012	18.0094795227051
2013	19.4312801361084
2014	22.8571434020996
2015	27.1428565979004
2016	29.0476188659668
2017	29.0476188659668
2018	21.698112487793
2019	25.4716987609863
2020	20.7547168731689
2021	36.3207550048828
2022	31.1320762634277