62% (2000)

43% (1999)

58% (2006)

24% (2009)

35% (2004)

40% (2005)

45% (2005)

44% (2000)

51% (2005)

36% (2006)

56% (2004)

46% (1997)

40% (2002)

60% (2006)

53% (2004)

44% (2002)

57% (2001)

44% (2004)

80% (1998)

27% (2003)