58% (1981)

72% (1992)

42% (1989)

51% (2000)

66% (2010)

64% (1975)

61% (2014)

68% (2004)

57% (2016)

73% (1960)

45% (1972)

71% (2003)

54% (1986)

65% (1969)

37% (1972)

64% (2019)

90% (2004)

55% (2021)

67% (2014)

51% (1975)