67% (2000)

50% (2003)

55% (1998)

41% (2000)

56% (2011)

56% (2003)

51% (2000)

50% (2004)

30% (1998)

35% (1998)

65% (1997)

44% (2000)

37% (2004)

35% (2001)

25% (1998)