55% (2014)

56% (1999)

59% (2005)

60% (2018)

70% (2001)

71% (1997)

63% (1998)

68% (1991)

54% (2009)

49% (1967)

64% (1993)

52% (1999)

57% (2015)

55% (2000)

57% (1998)

60% (1991)

62% (1994)

42% (1998)

58% (2003)

60% (2018)