54% (1993)

40% (1985)

68% (1971)

78% (2001)

90% (2001)

53% (1992)

100% (1995)

33% (2001)

63% (2000)

50% (1997)

65% (1996)

57% (1999)

0% (1984)

77% (1997)

59% (2000)

0% (1963)

40% (2003)

15% (1997)

100% (2006)

60% (2017)