Year	Number
1996	34.6733665466309
1998	35.5
2000	32.3383102416992
2002	24.3781089782715
2003	16.9154224395752
2004	20.6730766296387
2005	23.4449768066406
2006	27.2727279663086
2007	29.6650714874268
2008	34.1346168518066
2009	24.6445503234863
2010	28.4360198974609
2011	25.8215961456299
2012	32.3943672180176
2013	34.7417831420898
2014	35.5769233703613
2015	32.8571434020996
2016	31.9047622680664
2017	30
2018	30.4761905670166
2019	24.761905670166
2020	29.0476188659668
2021	39.0476188659668
2022	33.4905662536621