70% (1970)

50% (1979)

48% (1997)

55% (1994)

65% (2007)

0% (1964)

55% (1969)

20% (2000)

10% (2001)

53% (2010)

0% (1974)

65% (1996)

60% (1971)

44% (1987)

64% (2002)

76% (2015)

66% (2003)

40% (2016)

10% (1994)

85% (1963)