62% (2001)

74% (2010)

79% (2018)

65% (2004)

61% (2000)

49% (2016)

61% (2018)

66% (2009)

59% (2006)

62% (1995)

71% (2006)

67% (1993)

67% (2008)

68% (2015)

61% (2002)

66% (1991)

71% (2004)

57% (2004)

73% (1999)

65% (1997)