53% (2015)

80% (1971)

92% (1993)

52% (2006)

48% (2005)

43% (1995)

59% (2003)

0% (1980)

30% (1999)

78% (2007)

74% (2004)

70% (1992)

64% (1971)

55% (1978)

53% (2012)

0% (1990)

59% (2001)

85% (2008)

52% (2005)

68% (1952)