67% (1997)

65% (1999)

57% (2006)

72% (1986)

54% (2001)

56% (1995)

69% (1993)

68% (1991)

49% (2008)

72% (1983)

67% (1989)

45% (2007)

62% (2015)

45% (2010)

75% (1980)

73% (2005)

70% (2022)

80% (2014)