52% (2004)

63% (2009)

50% (2005)

30% (2003)

58% (1996)

45% (2007)

0% (1997)

0% (2006)

60% (2004)

30% (2010)

42% (2010)

65% (2007)

60% (1995)

0% (2008)

50% (1999)

0% (1992)

53% (2003)

51% (2005)

50% (2005)

62% (2008)