63% (1991)

47% (1998)

25% (1988)

80% (2004)

40% (1997)

77% (2003)

59% (2005)

40% (2003)

50% (1998)

0% (1970)

51% (1989)

0% (1970)

57% (1990)

56% (1995)

64% (1990)

55% (1995)

63% (1998)

43% (1986)

0% (2007)

0% (2005)