54% (2004)

60% (2011)

65% (2001)

55% (2005)

63% (2006)

39% (2004)

72% (1995)

53% (2003)

45% (2001)

62% (2008)

72% (2006)

48% (2007)

50% (1999)

61% (2004)

62% (2009)

60% (2008)

65% (2007)

58% (2007)

38% (2010)

50% (2005)