84% (2005)

86% (2004)

93% (1997)

67% (1998)

74% (2001)

71% (2008)

83% (1987)

67% (2010)

98% (1996)

84% (2020)

90% (1982)

87% (2021)

71% (2012)

82% (1975)

60% (1974)

83% (2000)

78% (1972)

80% (1990)

68% (2003)

70% (2009)