63% (1995)

69% (2002)

75% (2006)

61% (2005)

72% (2009)

77% (2010)

73% (2005)

71% (2020)

70% (1983)

74% (1991)

75% (2010)

45% (1998)

78% (2008)

66% (1994)

55% (1999)

59% (2012)

69% (1999)

72% (2006)

60% (2009)

56% (2000)