72% (2006)

68% (2000)

65% (1997)

56% (2022)

66% (2007)

75% (1999)

73% (2003)

62% (2004)

65% (2004)

63% (2000)

65% (1999)

58% (1998)

73% (1991)

59% (2006)

71% (2000)

69% (2005)

56% (1994)

54% (1995)

57% (2000)

55% (1997)