38% (2005)

47% (1997)

32% (1993)

65% (2001)

55% (1999)

59% (2002)

20% (1999)

48% (2007)

0% (2011)

65% (2003)

37% (1998)

20% (1996)

50% (2012)

40% (2004)

20% (1988)

70% (1993)

0% (1997)

0% (2013)

0% (2000)

60% (1995)