55% (1988)

60% (1981)

43% (1989)

57% (1999)

0% (1987)

0% (1987)

75% (1988)

0% (1992)

0% (1994)

64% (1999)

0% (1991)

0% (1988)

0% (1994)

56% (1984)

62% (1994)

60% (1989)

55% (2007)

0% (1993)

85% (1999)

0% (2000)