0% (1995)

60% (1989)

72% (2000)

60% (2003)

50% (1986)

67% (1999)

55% (1993)

0% (1994)

60% (1990)

0% (1994)

85% (1996)

66% (2003)

75% (2002)

58% (2003)

60% (1990)

50% (1997)

60% (2000)

71% (2006)

50% (1994)

40% (1997)