Year	Number
1996	43.0107536315918
1998	46.5240631103516
2000	34.5744667053223
2002	31.7460308074951
2003	33.862434387207
2004	30.5418720245361
2005	46.8292694091797
2006	30.2439022064209
2007	21.8446598052979
2008	23.3009700775146
2009	25.3588523864746
2010	23.3333339691162
2011	23.222749710083
2012	25.5924167633057
2013	21.8009471893311
2014	27.4038467407227
2015	25.238094329834
2016	23.8095245361328
2017	43.3333320617676
2018	38.5714302062988
2019	34.761905670166
2020	41.9047622680664
2021	31.9047622680664
2022	30.1886787414551