38% (2005)

59% (2002)

55% (1999)

20% (1988)

35% (1987)

0% (2000)

60% (1995)

0% (2000)

0% (1997)

0% (2013)

0% (1993)

48% (2007)

65% (1997)

65% (2001)

70% (1993)

20% (1999)

20% (1996)

51% (2005)

0% (1999)

47% (1997)