56% (1999)

55% (2014)

58% (2005)

60% (2018)

71% (2001)

55% (2009)

71% (1997)

64% (1993)

56% (1998)

49% (1967)

57% (2015)

59% (2003)

52% (1999)

67% (1991)

64% (1998)

47% (1993)

56% (2000)

64% (1994)

60% (2018)

62% (1996)