Newer
Older
PERIOD VALUE
1997 7950
1998 8660
1999 9955
2000 9358
2001 11166
2002 11310
2003 12768
2004 12754
2005 12268
2006 12530
2007 13878
2008 12969
2009 14393
2010 12738
2011 14575
2012 15355
2013 17750
2014 22456
2015 21306
2016 22475
2017 23696
2018 26175