65% (1996)

57% (2000)

47% (2004)

58% (2000)

52% (1991)

52% (1996)

40% (1991)

60% (1995)

100% (1988)

58% (1999)

40% (2004)

10% (1999)

0% (1999)

50% (2003)

0% (2008)

0% (2015)

72% (2003)

52% (1996)

50% (2004)