35% (1998)

0% (1996)

52% (2010)

0% (2013)

0% (1999)

0% (2005)

28% (1995)

43% (1996)

40% (2004)

43% (1994)

90% (2009)

70% (2013)

47% (1995)

0% (2003)

90% (2005)

35% (1996)

50% (2004)

80% (2002)

0% (1970)

61% (2001)