72% (1984)

81% (1981)

71% (1992)

71% (2005)

57% (2008)

74% (1972)

74% (1993)

70% (1985)

60% (2021)

75% (2002)

63% (1997)

63% (1977)

71% (1982)

62% (2007)

60% (2002)

66% (1989)

49% (1976)

64% (1977)

55% (1984)

58% (2002)