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1998
to
1999
4
2000
to
2001
4
2002
to
2003
14
2004
to
2005
26
2006
to
2007
23
2008
to
2009
26
2010
to
2011
40
2012
to
2013
70
2014
to
2015
47
2016
to
2017
39
2018
to
2019
36