50% (2010)

50% (1974)

0% (1998)

87% (1992)

0% (1967)

40% (1970)

55% (1995)

40% (1996)

0% (2005)

40% (1979)

40% (2016)

0% (1990)

68% (1988)

73% (1999)

70% (2005)

50% (1989)

70% (1980)

90% (1985)

70% (2000)

0% (1989)