1972 08 23.60   9.13  16.36 
1974 10 11.30  -1.48   4.91 
1976 01 -5.00 -18.95 -11.98 
1976 02  3.24 -10.90  -3.83 
1976 08 23.98  12.30  18.14 
1976 09 19.02   7.43  13.22 
1976 12 -1.68 -15.20  -8.43 
1978 02 -3.49 -21.45 -12.47 
1979 05 20.41   7.38  13.89 
1979 12  1.47  -8.02  -3.27 
1980 03  5.29  -6.61   -.66 
1980 06 23.43   8.21  15.82 
1980 08 25.12  13.33  19.22 
1981 01 -5.39 -19.53 -12.46 
1981 02  4.92  -5.88   -.48 
1981 08 24.46  11.08  17.77 
2011 01 -2.56 -14.43  -8.49 
2011 02  -.58 -15.52  -8.05 
2011 03  3.92  -8.45  -2.26 
2011 04 11.44   -.22   5.60 
2011 05 21.49   7.62  14.55 
2011 06 24.58  10.98  17.77 
2011 07 29.16  13.87  21.51 
2011 08 26.78  13.25  20.01 
2011 09 23.41  11.66  17.53 
2011 10 15.49   4.51  10.00 
2011 11 11.51  -1.71   4.90 
2011 12  3.60  -6.95  -1.67 
2012 01  -.21 -10.34  -5.27 
2012 02  3.07  -8.58  -2.75 
2012 03 11.55  -2.73   4.41 
2012 04 13.95   -.73   6.60 
2012 05 21.86   7.95  14.90 
2012 06 25.31  10.92  18.11 
2012 07 29.53  13.72  21.62 
2012 08 28.88  13.85  21.36 
2012 09 22.65   8.20  15.42 
2012 10 16.52   5.18  10.85 
2012 11  7.61  -3.50   2.05 
2012 12  2.32  -5.69  -1.68 
2013 01  -.85 -13.15  -7.00 
2013 02   . 6 -10.22  -5.08 
2013 03  4.48  -5.81   -.66 
2013 04 12.43   -.70   5.86 
2013 05 21.89   5.88  13.88 
2013 06 25.06  12.20  18.62 
2013 07 28.68  16.91  22.79 
2013 08 26.89  12.48  19.68 
2013 09 22.41   8.89  15.65 
2013 10 17.14   2.80   9.96 
2013 11  6.53  -5.15    .69 
2013 12   .-4  -8.99  -4.51 
2014 01 -3.11 -14.24  -8.67 
2014 02  -.33 -99.99 -99.99 
2014 03  1.55 -14.16  -6.30 
2014 04 13.36  -2.21   5.57 
2014 05 20.10   5.76  12.93 
