54% (2004)

60% (2011)

63% (2006)

40% (2004)

55% (2005)

45% (2001)

60% (2004)

60% (1995)

60% (2008)

30% (2008)

65% (2001)

72% (2006)

62% (2009)

62% (2004)

45% (2007)

58% (2007)

60% (2006)

53% (2003)

30% (2003)

63% (2009)