41% (2000)

49% (2001)

26% (1997)

82% (2003)

67% (2004)

49% (2011)

66% (1984)

50% (2003)

62% (1987)

66% (2004)

67% (1999)

52% (2009)

52% (2006)

62% (2007)

53% (2002)

55% (2008)

0% (1974)

60% (2002)

65% (2011)

77% (2013)