50% (2008)

15% (1986)

61% (2004)

44% (1999)

60% (1964)

60% (2007)

45% (2005)

60% (1977)

80% (1971)

90% (1948)

64% (2002)

48% (1995)

55% (1978)

52% (2006)

48% (2015)

80% (1999)

61% (2009)

60% (1979)

43% (1987)

59% (2001)