1970 09  8.42 -99.99 -99.99 
1976 06 19.37   6.57  12.97 
1976 08 20.85  10.27  15.56 
1976 10 16.34   4.07  10.20 
1976 11 11.65   1.03   6.33 
1976 12  9.12   1.19   5.15 
1977 01  6.15  -2.40   1.87 
1977 02 12.54   1.73   7.13 
1977 04 16.85   3.77  10.31 
1977 05 16.31   5.52  10.91 
1977 06 21.91   9.16  15.53 
1977 07 22.35   9.52  15.93 
1977 10 16.40   4.27  10.33 
1977 12  7.49    .19   3.84 
1978 01  8.39    .62   4.50 
1978 05 17.46   5.77  11.62 
1978 07 24.11  11.17  17.64 
1978 08 23.26  11.55  17.40 
1978 12  5.44  -1.57   1.93 
1979 01  4.44  -4.88   -.21 
2011 01  7.99    .47   4.23 
2011 02  7.89  -1.63   3.13 
2011 03 11.91   2.19   7.05 
2011 04 11.97   1.41   6.69 
2011 05 15.86   5.55  10.70 
2011 06 20.14   8.89  14.51 
2011 07 22.55   9.53  16.03 
2011 08 24.82   9.99  17.40 
2011 09 23.95   8.43  16.19 
2011 10 15.83   4.78  10.30 
2011 11 11.22   -.47   5.37 
2011 12  7.74  -1.60   3.07 
2012 01  7.84  -1.02   3.41 
2012 02 10.53   -.11   5.21 
2012 03 10.36    .55   5.45 
2012 04 16.28   4.00  10.14 
2012 05 18.65   5.40  12.02 
2012 06 19.11   7.92  13.51 
2012 07 23.55  10.33  16.93 
2012 08 26.23  10.05  18.14 
2012 09 23.95   6.00  14.97 
2012 10 16.23   4.25  10.24 
2012 11 11.33   1.91   6.62 
2012 12  6.74    .45   3.59 
2013 01  5.67  -2.85   1.41 
2013 02  9.20    .57   4.88 
2013 03 13.81    .83   7.32 
2013 04 14.41   2.93   8.67 
2013 05 20.23   6.44  13.33 
2013 06 23.43   9.72  16.58 
2013 07 26.14   9.39  17.76 
2013 08 26.51  10.73  18.61 
2013 09 21.54   9.14  15.34 
2013 10 15.42   2.38   8.89 
2013 11 10.93   -.24   5.34 
2013 12  6.04  -3.96   1.04 
2014 01  8.60  -1.48   3.56 
2014 02  8.10  -2.60   2.75 
2014 03 13.02   1.75   7.38 
2014 04 17.11   3.19  10.15 
