70% (1994)

60% (1994)

67% (2007)

57% (1996)

62% (2001)

65% (1995)

49% (1992)

57% (1997)

60% (2003)

65% (1998)

57% (2002)

60% (1997)

72% (1997)

66% (2002)

62% (1996)

49% (1996)

61% (2002)

53% (2000)

58% (2000)

67% (1995)