0% (1984)

40% (1984)

60% (2001)

0% (1981)

66% (1979)

39% (1979)

67% (2015)

60% (2013)

66% (2008)

41% (2005)

55% (2007)

60% (2009)

59% (1984)

60% (1967)

0% (1976)

50% (1970)

76% (2005)

42% (2011)

60% (1999)

30% (2008)