37% (1980)

64% (1986)

37% (2001)

49% (2003)

66% (1996)

0% (2006)

73% (2001)

79% (1999)

0% (1981)

75% (1971)

79% (2002)

68% (1994)

70% (2018)

75% (2015)

71% (2003)

30% (1991)

50% (2018)

75% (2011)

56% (1968)

27% (2005)