35% (2001)

12% (1998)

15% (2009)

0% (2001)

40% (2012)

37% (1997)

67% (2010)

0% (2010)

85% (2003)

0% (2013)

70% (1998)

40% (2001)

0% (2000)

0% (2006)

0% (2005)

88% (1978)

0% (2000)

75% (2000)

70% (2002)

30% (2009)