62% (1993)

61% (2005)

66% (2007)

71% (2003)

56% (2013)

55% (1980)

52% (2000)

72% (1988)

67% (2006)

56% (1993)

57% (2015)

68% (1997)

63% (1998)

71% (2020)

80% (1995)

58% (2006)

66% (1984)

61% (1987)

67% (1985)

62% (2000)