60% (1991)

70% (1995)

73% (1999)

67% (1994)

67% (1992)

70% (2000)

84% (1957)

60% (2024)

0% (1998)

63% (2001)

0% (2000)

67% (2004)

58% (1995)

52% (2002)

10% (1999)

60% (1999)

0% (1970)