75% (1997)

0% (1970)

80% (1996)

68% (1975)

0% (2005)

68% (2011)

100% (2015)

63% (1992)

80% (2008)

57% (1989)

64% (1955)

62% (2007)

61% (1978)

0% (2010)

70% (2008)

89% (2011)

50% (1993)

78% (2003)

60% (1998)

80% (2002)