71% (2006)

60% (1993)

46% (1999)

99% (1995)

86% (1988)

75% (2003)

64% (1992)

60% (1998)

90% (1975)

60% (2004)

54% (2005)

74% (2009)

83% (1983)

65% (1997)

90% (1996)

65% (1990)

77% (2018)

82% (2003)

60% (1983)

0% (1992)