2010 

•  Survey 4 - 2010 31.72 Kb
•  Survey 3 - 2010 31.74 Kb
•  Survey 1 - 2010 32.96 Kb

2009

•  Survey 8 - 2009 39.12 Kb
•  Survey 7 - 2009 33.35 Kb
•  Survey 6 - 2009 33.29 Kb
•  Survey 5 - 2009 33.28 Kb
•  Survey 4 - 2009 33.30 Kb
•  Survey 3 - 2009 33.25 Kb
•  Survey 2 - 2009 33.40 Kb
•  Survey 1 - 2009 33.79 Kb

2008

•  Survey 8 - 2008 32.82 Kb
•  Survey 7 - 2008 31.82 Kb
•  Survey 6 - 2008 31.77 Kb
•  Survey 5 - 2008 32.70 Kb
•  Survey 4 - 2008 31.79 Kb
•  Survey 3 - 2008 32.65 Kb
•  Survey 2 - 2008 32.75 Kb
•  Survey 1 - 2008 31.77 Kb 

2007

•  Survey 8 - 2007 31.57 Kb
•  Survey 7 - 2007 32.54 Kb
•  Survey 6 - 2007 31.56 Kb
•  Survey 5 - 2007 32.59 Kb
•  Survey 4 - 2007 32.63 Kb
•  Survey 3 - 2007 31.66 Kb
•  Survey 2 - 2007 31.84 Kb
• Survey 1 - 2007 32.03 Kb

2006

• Survey 8 - 2006 31.76 Kb
• Survey 7 - 2006 31.85 Kb
• Survey 6 - 2006 31.63 Kb
• Survey 5 - 2006 31.71 Kb
• Survey 4 - 2006 31.75 Kb
• Survey 3 - 2006 31.75 Kb
• Survey 2 - 2006 31.61 Kb
• Survey 1 - 2006 31.97 Kb

2005

• Survey 8 - 2005 17.57 Kb
• Survey 7 - 2005 17.59 Kb
• Survey 6 - 2005 17.59 Kb
• Survey 5 - 2005 16.51 Kb
• Survey 4 - 2005 14.71 Kb
• Survey 3 - 2005 14.48 Kb
• Survey 2 - 2005 70.89 Kb
• Survey 1 - 2005 16.28 Kb