2011 02 -6.42 -12.07  -9.24 
2011 03 -8.97 -14.75 -11.86 
2011 04 13.72 -20.91 -17.31 
2011 05 13.90 -20.02 -16.95 
2011 06 14.14 -20.31 -17.22 
2011 07 -8.80 -15.68 -12.24 
2011 08 10.54 -16.12 -13.33 
2011 09 19.20 -26.01 -22.60 
2011 10 12.43 -17.48 -14.95 
2011 11 -7.49 -11.64  -9.56 
2011 12 -3.94  -7.90  -5.92 
2012 01 -3.88  -7.49  -5.68 
2012 02 -5.51 -10.66  -8.08 
2012 03 -7.18 -13.20 -10.18 
2012 04 -9.56 -15.98 -12.77 
2012 05 10.51 -16.83 -13.67 
2012 06 18.78 -26.45 -22.61 
2012 07 17.12 -23.06 -20.09 
2012 08 16.86 -23.27 -20.06 
2012 09 15.51 -21.53 -18.52 
2012 10 13.43 -19.89 -16.66 
2012 11 -8.75 -14.76 -11.75 
2012 12 -2.41  -5.82  -4.11 
2013 01  -.16  -4.73  -2.44 
2013 02 -5.49 -10.13  -7.81 
2013 03 -5.42  -9.67  -7.54 
2013 04 15.43 -21.20 -18.31 
2013 05 13.21 -20.31 -16.76 
2013 06 18.83 -25.16 -21.99 
2013 07 18.76 -25.46 -22.11 
2013 08 16.84 -24.03 -20.43 
2013 09 17.18 -22.63 -19.90 
2013 10 13.00 -18.20 -15.60 
2013 11 10.40 -14.55 -12.47 
2013 12 -2.69  -6.44  -4.56 
2014 01 -3.45  -7.29  -5.37 
