60% (1997)

64% (1980)

53% (1998)

68% (2007)

0% (1974)

0% (1970)

70% (1992)

0% (1993)

15% (1996)

72% (2014)

56% (1998)

50% (1996)

59% (2006)

78% (2009)

58% (2001)

67% (1988)

0% (1985)

0% (1999)

0% (1991)

68% (2007)