62% (2007)

63% (2006)

58% (2009)

33% (2003)

37% (2004)

50% (2003)

57% (1998)

71% (2010)

62% (2005)

70% (2002)

65% (2017)

48% (2002)

52% (2005)

50% (2004)

77% (2023)

0% (1970)