62% (2009)

36% (2006)

54% (2009)

52% (2013)

55% (2014)

57% (1996)

41% (2019)

65% (2012)

63% (2009)

59% (1970)

69% (2008)

61% (1984)

55% (1974)

63% (1959)

67% (2016)

67% (1984)

61% (2001)

47% (1968)

42% (2000)

58% (2023)