Year	Number
1996	24.6231155395508
1998	22
2000	21.8905467987061
2002	16.9154224395752
2003	15.4228858947754
2004	16.3461532592773
2005	14.3540668487549
2006	8.61244010925293
2007	7.65550231933594
2008	7.21153831481934
2009	4.26540279388428
2010	4.7393364906311
2011	5.63380289077759
2012	7.0422534942627
2013	13.1455402374268
2014	7.21153831481934
2015	8.09523773193359
2016	17.619047164917
2017	15.2380952835083
2018	18.5714282989502
2019	22.8571434020996
2020	22.8571434020996
2021	29.0476188659668
2022	19.8113212585449