Year	Number
1992	21196700
1993	14961000
1994	15269400
1995	16632800
1996	16447200
1997	16265400
1998	16922800
1999	16636900
2000	19131881
2001	18955710
2002	19211823
2003	20432324
2004	25379444
2005	28757480
2006	31745191
2007	35049600
2008	39056225
2009	44437712
2010	61394191.98893127
2011	72357640.50383262
2012	83343593.42896295
2013	96541595.80898754
2014	105754634.00798728
2015	119184129
2016	125119242
2017	137449544
2018	146715960.521
2019	144851367.268
2020	57405263.206999995
2021	88476243.262