60% (2020)

59% (1991)

53% (1991)

48% (2001)

51% (1996)

69% (1994)

62% (2003)

63% (2008)

66% (2008)

31% (1995)

55% (2008)

49% (1995)

74% (2001)

64% (1994)

71% (1990)

53% (2007)

31% (1996)

62% (1996)

63% (2000)

0% (1970)