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1998
to
1999
3
2000
to
2001
4
2002
to
2003
7
2004
to
2005
7
2006
to
2007
14
2008
to
2009
15
2010
to
2011
12
2012
to
2013
13
2014
to
2015
15
2016
to
2017
18
2018
2