59% (1995)

52% (2006)

59% (1999)

59% (1987)

47% (1998)

67% (1993)

67% (1995)

59% (1991)

62% (2002)

40% (2003)

51% (1989)

58% (1998)

34% (1998)

52% (1987)

56% (1995)

0% (2005)

70% (2005)

49% (2003)

0% (1970)

0% (1970)