66% (1999)

69% (1999)

72% (1996)

51% (2000)

44% (2009)

74% (1995)

58% (2000)

69% (1998)

67% (1999)

51% (1996)

47% (2002)

60% (1999)

57% (1999)

61% (2002)

57% (2001)

49% (1995)

51% (2004)

60% (2000)

55% (1999)

80% (1930)