20% (2002)

75% (1996)

0% (2010)

50% (2008)

50% (1999)

80% (2007)

67% (2000)

70% (2010)

20% (1998)

70% (1997)

70% (2000)

80% (1999)

20% (2003)

40% (2007)

60% (1999)

70% (2005)

50% (1994)

0% (2016)

87% (2010)

50% (1993)