57% (2003)

59% (2006)

53% (2002)

69% (2006)

53% (2005)

67% (2003)

61% (2002)

67% (2002)

66% (1995)

71% (2001)

20% (1999)

0% (2005)

80% (2001)

46% (2005)

67% (2004)

60% (2005)

71% (2005)

22% (2008)

57% (2008)

66% (2004)