string(4) "2019" string(4) "2018" string(4) "2017" string(4) "2016" string(4) "2015" string(4) "2014" string(4) "2013" string(4) "2012" string(4) "2011" string(4) "2010" string(4) "2009" string(4) "2008" string(4) "2007" string(4) "2006" string(4) "2005" string(4) "2004" string(4) "2003" string(4) "2002" string(4) "2001"