Year	Number
1990	14572624
1991	14293113
1992	14376307
1993	13728786
1994	13600732
1995	12399080
1996	11612655
1997	10622769
1998	10101909
1999	10115940
2000	10676393
2001	10447488
2002	9633935
2003	8684292
2004	8639097
2005	7965263
2006	9120116
2007	10681226
2008	9785775
2009	9940945
2010	10119329
2011	9992694
2012	10094825
2013	11321546
2014	14003926
2015	15701711
2016	16751228
2017	19437253
2018	19837064
2019	19916542
2020	20170768
2021	20910330
2022	29039233
2023	31229016