0% (2006)

58% (1996)

48% (2007)

30% (2008)

0% (1992)

30% (2006)

50% (2005)

51% (2005)

45% (2007)

50% (1999)

65% (2007)

35% (2005)

55% (1997)

50% (2005)

60% (1995)

52% (2004)

63% (2009)

40% (2007)

60% (2006)

30% (2003)