0% (2006)

42% (2002)

57% (2008)

60% (2005)

60% (2010)

43% (2005)

0% (1987)

50% (2003)

50% (2010)

45% (2003)

50% (1999)

45% (2013)

50% (2006)

60% (2003)

0% (1990)

50% (2007)

75% (2009)

55% (2008)

60% (2003)

30% (2003)