54% (2004)

53% (2003)

72% (2006)

60% (1995)

65% (2007)

45% (2001)

60% (2008)

62% (2008)

62% (2009)

64% (2006)

60% (2004)

30% (2006)

60% (2011)

35% (2005)

39% (2004)

62% (2004)

60% (2006)

57% (2007)

50% (1999)

56% (2005)