43% (1993)

68% (2003)

61% (1999)

32% (2002)

48% (2005)

60% (2001)

68% (1997)

57% (1999)

30% (1996)

53% (1994)

47% (2006)

45% (1998)

56% (1997)

55% (1997)

10% (1996)

55% (2006)

35% (2000)

40% (1993)

56% (2006)

80% (1998)