70% (1995)

60% (1977)

72% (1973)

0% (1997)

0% (2009)

40% (1996)

62% (1985)

77% (2006)

60% (1989)

44% (2011)

0% (1995)

70% (1985)

50% (1977)

60% (1989)

0% (1993)

20% (1975)

85% (2006)

62% (1978)

60% (1993)

50% (1984)