0% (1991)

77% (1991)

0% (2000)

0% (1971)

60% (1994)

0% (1997)

73% (1971)

70% (1992)

67% (1987)

50% (1992)

42% (2004)

60% (1995)

50% (1998)

66% (2005)

58% (1997)

0% (2000)

50% (1996)