56% (1977)

30% (2023)

51% (2008)

63% (1979)

61% (2011)

62% (2011)

56% (1975)

57% (1996)

61% (2000)

65% (2015)

68% (1996)

67% (2020)

65% (2016)

60% (1973)

56% (1983)

61% (2013)

68% (1994)

60% (2011)

48% (1993)

54% (2011)