1998 12 29.80  24.40  27.09 
2003 11 29.80  24.30  27.05 
2007 01 28.60  24.77  26.68 
2007 02 29.64  25.21  27.42 
2007 03 29.87  25.15  27.51 
2007 04 30.49  25.33  27.91 
2007 05 30.35  25.22  27.78 
2007 06 30.85  25.21  28.03 
2007 09 30.06  24.61  27.33 
2008 02 29.46  24.43  26.94 
2008 04 30.40  25.06  27.73 
2008 05 30.69  25.42  28.05 
2008 06 30.37  24.89  27.63 
2008 07 29.49  24.68  27.08 
2008 09 29.82  24.85  27.33 
2008 11 29.90  24.91  27.40 
2008 12 29.29  24.84  27.06 
2009 02 30.13  24.97  27.55 
2009 03 30.40  24.47  27.43 
2009 04 31.10  25.53  28.31 
2009 06 31.26  25.66  28.46 
2009 07 30.37  24.92  27.64 
2009 08 30.38  24.95  27.66 
2009 09 30.69  25.09  27.89 
2009 10 30.64  24.99  27.81 
2009 11 29.72  25.03  27.37 
2009 12 29.55  25.23  27.39 
2010 01 30.19  25.25  27.72 
2010 02 31.04  26.13  28.58 
2010 09 30.31  24.56  27.43 
2010 10 30.77  25.28  28.02 
2010 12 29.66  24.71  27.18 
2011 02 29.85  24.82  27.33 
2011 04 30.60  25.13  27.86 
2011 06 30.12  25.18  27.65 
2011 07 31.05  25.25  28.15 
2011 08 30.42  25.01  27.71 
2011 10 29.66  24.63  27.14 
2011 11 29.96  25.09  27.52 
2011 12 29.11  25.08  27.09 
2012 01 29.76  24.78  27.27 
2012 02 30.15  25.16  27.65 
2012 03 29.99  24.74  27.36 
2012 04 30.71  24.75  27.73 
2012 05 30.95  24.74  27.84 
2012 06 31.17  25.46  28.31 
2012 07 30.14  25.04  27.59 
2012 08 30.38  25.24  27.81 
2012 09 30.67  25.03  27.85 
2012 10 31.01  25.29  28.15 
2012 11 30.28  24.70  27.49 
2012 12 29.40  24.72  27.06 
2013 01 29.96  25.14  27.55 
2013 02 29.22  24.86  27.04 
2013 03 31.35  26.07  28.71 
2013 04 31.17  25.46  28.31 
2013 05 31.20  25.49  28.34 
2013 06 32.16  25.54  28.85 
2013 07 30.25  24.60  27.42 
2013 08 30.18  24.69  27.43 
2013 09 29.99  24.93  27.46 
2013 10 30.94  24.94  27.94 
2013 11 30.23  24.69  27.46 
2013 12 28.98  24.86  26.92 
