72% (2004)

75% (2014)

67% (2005)

74% (2012)

71% (2010)

80% (1995)

80% (2004)

67% (2000)

72% (2003)

74% (1995)

77% (2008)

80% (2013)

76% (1999)

72% (2013)

70% (2009)

66% (1993)

82% (2018)

61% (1998)

74% (2004)

71% (1988)