50% (1994)

64% (2008)

38% (2007)

59% (1996)

61% (2009)

52% (2011)

54% (1996)

58% (1994)

57% (2007)

58% (1991)

37% (2009)

72% (2012)

35% (1994)

57% (2007)

60% (1994)

54% (1997)

38% (2009)

20% (1994)

61% (2006)

52% (2010)