73% (2009)

61% (2002)

57% (2006)

45% (2008)

70% (1996)

0% (1989)

10% (2013)

65% (1996)

0% (1997)

60% (2008)

54% (1996)

0% (2003)

53% (1997)

60% (1994)

50% (1994)