42% (2000)

63% (2003)

34% (2002)

61% (1996)

77% (2000)

41% (2002)

47% (2001)

46% (2003)

40% (2002)

41% (1999)

59% (2003)

46% (2002)

48% (2003)

15% (1998)

32% (2002)

58% (2000)

23% (2004)

0% (1970)

57% (2002)

0% (2009)