0% (1989)

65% (2003)

70% (1989)

50% (1977)

78% (1968)

0% (1964)

50% (1978)

0% (1987)

50% (1982)

0% (1985)

73% (1999)

30% (1999)

0% (1983)

50% (1967)

52% (2008)

83% (1996)

30% (1994)

60% (2003)

0% (2001)

0% (2007)