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1997
3
1998
to
1999
16
2000
to
2001
12
2002
to
2003
26
2004
to
2005
22
2006
to
2007
20
2008
to
2009
9
2010
to
2011
11
2012
to
2013
2
2014
to
2015
0
2016
to
2017
0
2018
3