Year % 1988 3.649195 1993 0.1031779 1995 0.8951226 1996 0.0871434 1997 3.884468 1998 0.0262329 1999 3.890461 2000 0 2001 0 2002 0.088574 2003 0.0136227 2004 4.523208 2005 4.441132 2006 4.396207 2007 4.648497 2008 4.943135 2009 5.185213 2010 0.0071979 2011 0.0140454 2012 0.0106583 2013 0.0099913 2014 0 2015 0.0065714 2016 0.0097583 2017 0.0169136 2018 0.0033834 2019 6.41224 2020 6.510475 2021 7.177601