Year	Number
1996	53.5
1998	47.2636833190918
2000	52.2388076782227
2002	32.8358192443848
2003	38.3084564208984
2004	38.9423065185547
2005	40.3846168518066
2006	31.25
2007	32.6923065185547
2008	29.8076915740967
2009	29.8578205108643
2010	29.8578205108643
2011	28.6384983062744
2012	30.046947479248
2013	28.1690139770508
2014	30.5418720245361
2015	29.0640392303467
2016	32.019702911377
2017	32.019702911377
2018	31.5533981323242
2019	31.8840579986572
2020	32.8502426147461
2021	32.8502426147461
2022	32.3671493530273