58% (2005)

35% (2004)

57% (1998)

40% (2002)

56% (1996)

57% (2008)

47% (1997)

65% (1998)

51% (2004)

40% (2004)

55% (2008)

0% (2001)

38% (1997)

44% (2004)

41% (1995)

52% (2000)

60% (2006)

51% (2005)

35% (2011)

0% (2000)