44% (1992)

20% (1991)

40% (1998)

56% (1993)

20% (1998)

20% (1986)

0% (1989)

45% (1998)

0% (1991)

47% (2005)

45% (1999)

57% (1971)

35% (1999)

52% (1988)

57% (1965)

50% (1992)

20% (1985)

60% (1994)

20% (1991)

50% (1994)