52% (1997)

55% (1999)

67% (2001)

72% (2005)

59% (1997)

67% (1995)

58% (1995)

10% (1991)

57% (1998)

0% (2021)

49% (2000)

34% (2003)

58% (1991)

0% (2000)

52% (2001)

37% (1997)

33% (2000)

0% (1970)

55% (1998)

30% (1991)