54% (1975)

47% (1997)

58% (2001)

58% (1999)

49% (2011)

75% (2018)

71% (2014)

59% (2018)

43% (1992)

56% (2003)

62% (1992)

67% (1977)

63% (2014)

67% (1997)

67% (2016)

80% (1972)

57% (2017)

57% (2011)

45% (2017)

67% (2014)