67% (2011)

61% (2003)

69% (2014)

67% (1985)

69% (1991)

67% (1992)

60% (1994)

59% (2007)

71% (1989)

66% (1997)

44% (2000)

56% (2016)

63% (2001)

65% (1985)

60% (2007)

67% (1989)

72% (2003)

68% (2018)

72% (2005)

51% (1995)