35% (2011)

54% (2005)

56% (2000)

46% (1995)

48% (2000)

28% (2001)

54% (2004)

35% (2004)

38% (1997)

35% (1995)

53% (2000)

60% (1995)

72% (1996)

43% (1999)

53% (2002)

0% (1999)

58% (2006)

55% (2008)

0% (2001)

45% (2005)