57% (1998)

51% (2020)

67% (1977)

58% (1973)

46% (2001)

51% (1989)

66% (1987)

60% (1975)

73% (1987)

72% (1974)

45% (1996)

47% (1996)

30% (1993)

48% (1977)

60% (1976)

63% (1979)

60% (1978)

65% (1997)

65% (1994)

60% (1954)