30% (2005)

73% (2003)

40% (1993)

53% (2000)

64% (2002)

37% (1993)

63% (1997)

52% (2001)

30% (2005)

60% (1993)

43% (1992)

60% (1995)

40% (2002)

49% (2004)

30% (2002)

60% (2000)

33% (1996)

52% (2001)

10% (1995)

0% (2005)