61% (2007)

66% (2004)

67% (2002)

56% (2003)

57% (1998)

46% (2003)

70% (1999)

45% (2008)

50% (2008)

80% (2001)

52% (1998)

52% (2006)

60% (2003)

61% (2002)

0% (2005)

50% (2007)

60% (2005)

51% (2005)

57% (2005)

48% (2005)