53% (2009)

69% (2011)

75% (2007)

72% (2003)

67% (2007)

61% (1985)

70% (2023)

68% (2007)

65% (1996)

61% (1987)

70% (1981)

49% (1987)

50% (1983)

58% (1988)

58% (1983)

40% (1987)

37% (2005)

61% (1984)

55% (1985)

50% (2003)