50% (1967)

50% (1972)

55% (1976)

50% (1985)

35% (1999)

57% (2009)

77% (2002)

70% (1997)

0% (1955)

0% (1989)

45% (1968)

20% (1985)

0% (1998)

62% (2016)

50% (1985)

50% (1979)

83% (2005)

0% (2007)

50% (1970)

60% (1990)