67% (1996)

57% (1985)

58% (2007)

59% (1999)

55% (1986)

71% (2022)

73% (1991)

72% (1996)

63% (1995)

51% (2004)

68% (1987)

60% (1987)

54% (1993)

69% (1984)

65% (2015)

56% (1994)

72% (1984)

64% (1985)

58% (2015)

71% (2005)