60% (2000)

58% (1996)

48% (2001)

54% (2006)

69% (2003)

43% (1998)

52% (2013)

61% (2001)

54% (2013)

63% (2001)

64% (2002)

67% (1998)

46% (2000)

60% (2007)

50% (1999)

68% (1996)

43% (2000)

62% (2000)

63% (2006)

68% (1995)