51% (2009)

68% (2016)

62% (1997)

72% (1979)

48% (2015)

55% (2014)

45% (1991)

51% (2010)

57% (1977)

61% (1981)

63% (1987)

72% (2021)

71% (1996)

51% (1974)

64% (2001)

63% (1992)

60% (2014)

67% (1979)

46% (1991)

65% (1990)