66% (2010)

61% (2005)

60% (2009)

46% (1995)

60% (2010)

53% (2005)

38% (2005)

62% (2004)

50% (1995)

52% (2008)

51% (2010)

42% (1992)

72% (2003)

52% (2009)

53% (2003)

54% (1990)

48% (1999)

49% (2005)

62% (2005)

58% (1996)