65% (2009)

71% (2003)

66% (1999)

37% (1990)

59% (2006)

60% (2007)

0% (1999)

0% (2006)

57% (2012)

50% (2000)

0% (1991)

47% (2011)

44% (1990)

0% (2005)

58% (2013)

60% (2010)

50% (1993)

0% (2001)

60% (1991)

0% (2018)