68% (2018)

61% (2014)

72% (1992)

65% (1997)

64% (2000)

67% (1998)

61% (2015)

70% (2005)

68% (2001)

75% (2007)

67% (2018)

70% (1985)

52% (1985)

57% (1996)

63% (1991)

60% (1991)

67% (1987)

60% (2012)

52% (2007)

67% (2014)