1967 04 -99.99  -4.56 -99.99 
1967 05  18.99   0.70   9.84 
1967 06  22.82   4.92  13.87 
1967 07  29.25   8.10  18.68 
1971 11   8.29  -4.10   2.09 
1971 12   0.58  -9.24  -4.32 
1972 01   0.67 -10.61  -4.96 
1973 06  24.81   5.55  15.18 
1973 07  29.79   8.66  19.22 
1973 08  28.55   6.57  17.56 
1973 11   5.63  -1.16   2.23 
1974 02   5.55  -7.54   -.99 
1974 03   8.67  -3.46   2.60 
1974 04  11.01  -2.58   4.21 
1974 05  17.76   0.77   9.26 
1974 06  25.87   6.11  15.99 
1975 03   5.96 -99.99 -99.99 
1976 07  27.29 -99.99 -99.99 
1978 08  26.58 -99.99 -99.99 
1978 10  21.53   -.51  10.51 
1978 12   1.55 -99.99 -99.99 
1979 02   4.91  -4.39   0.26 
2011 01   5.06  -7.75  -1.34 
2011 02   5.71  -7.06   -.67 
2011 03   7.50  -2.01   2.74 
2011 04  10.49  -2.43   4.02 
2011 05  15.50   0.00   7.75 
2011 06  21.76   4.29  13.02 
2011 07  28.03   8.14  18.09 
2011 08  30.70   8.54  19.62 
2011 09  28.22   4.88  16.54 
2011 10  17.34   -.22   8.56 
2011 11   7.56  -3.33   2.11 
2011 12   7.55  -8.68   -.56 
2012 01   6.27  -6.83   -.27 
2012 02   7.47  -6.07   0.69 
2012 03   8.35  -4.08   2.13 
2012 04  14.45   -.66   6.89 
2012 05  19.93   1.45  10.69 
2012 06  22.69   4.79  13.74 
2012 07  29.40   8.26  18.83 
2012 08  32.09   8.56  20.32 
2012 09  29.33   4.71  17.02 
2012 10  19.17   0.36   9.76 
2012 11  10.33  -2.03   4.15 
2012 12   4.03  -6.31  -1.13 
2013 01   1.74 -11.61  -4.93 
2013 02   7.22  -7.66   -.22 
2013 03  12.98  -3.46   4.75 
2013 04  15.16  -1.15   7.00 
2013 05  20.27   2.79  11.53 
2013 06  25.35   6.63  15.99 
2013 07  33.61  10.95  22.28 
2013 08  29.46   8.14  18.79 
2013 09  24.35   4.81  14.58 
2013 10  17.15  -3.14   7.00 
2013 11  11.34  -4.50   3.42 
2013 12   2.92 -11.57  -4.32 
2014 01   7.49  -5.88   0.80 
2014 02   8.49  -3.44   2.52 
2014 03  12.92  -2.17   5.37 
2014 04  15.72  -1.03   7.34 
