73% (2008)

45% (2004)

20% (2002)

62% (1997)

80% (1996)

100% (2007)

52% (2011)

62% (2013)

0% (1996)

52% (2007)

80% (2005)

49% (1994)

40% (2000)

40% (1994)

0% (2011)

34% (1998)

70% (1999)

43% (1996)

80% (2007)

50% (1993)