45% (2007)

50% (2005)

42% (2010)

65% (2007)

60% (1995)

70% (2002)

72% (2006)

30% (2003)

0% (1992)

60% (2004)

53% (2003)

62% (1999)

0% (1997)

51% (2005)

62% (2008)

50% (2005)

30% (2008)

0% (2008)

35% (2005)

50% (1999)