72% (2005)

77% (2014)

73% (2016)

75% (2020)

66% (2021)

56% (2003)

75% (2014)

57% (2008)

61% (2013)

58% (2013)

66% (2015)

74% (2023)

75% (2022)

61% (2005)

69% (2001)

58% (1996)

69% (2006)

59% (1997)

61% (1993)

62% (2003)