53% (2015)

57% (2014)

63% (2004)

47% (1986)

51% (1953)

44% (2016)

48% (1976)

41% (1973)

56% (2000)

43% (2001)

60% (2016)

74% (2004)

57% (2017)

63% (2016)

30% (2001)

63% (1973)

66% (1995)

67% (2010)

47% (1979)

52% (2005)