37% (1980)

52% (2003)

66% (1996)

79% (1999)

30% (1996)

37% (2001)

73% (2001)

0% (2006)

0% (1981)

20% (1993)

80% (1999)

30% (1991)

79% (2002)

53% (2014)

72% (2007)

75% (1971)

65% (2008)

90% (2009)

60% (1997)

50% (1969)