1973 03 15.17 -30.07 -22.62 
1973 06 19.27   8.42  13.84 
1973 11 27.76 -36.12 -31.93 
1975 03 12.21 -25.43 -18.82 
1976 06 15.96   7.56  11.76 
1976 10 -7.64 -15.07 -11.35 
1977 09  5.93   -.19   2.87 
1980 02 29.17 -38.54 -33.85 
1980 09  8.22   -.19   4.02 
1980 10 -6.30 -13.81 -10.05 
1980 12 31.30 -39.07 -35.18 
1988 08 15.76   6.15  10.95 
1988 09  8.93   3.03   5.98 
1989 02 24.20 -34.59 -29.39 
1989 07 19.00   9.18  14.09 
2009 04 -2.39 -16.93  -9.66 
2009 05  9.93   -.23   4.85 
2009 06 20.43   8.74  14.58 
2009 07 19.79   9.17  14.48 
2009 08 15.55   5.16  10.35 
2009 09 11.20    .39   5.79 
2009 10 -9.06 -15.69 -12.37 
2009 11 28.71 -35.09 -31.90 
2009 12 36.09 -41.11 -38.60 
2010 01 38.50 -45.04 -41.77 
2010 02 34.89 -45.18 -40.03 
2010 03 20.72 -35.09 -27.90 
2010 04 -4.86 -18.28 -11.57 
2010 05 14.84   3.35   9.09 
2010 06 18.29   8.68  13.49 
2010 07 27.50  14.51  21.00 
2010 08 16.18   6.62  11.40 
2010 09  6.85   -.79   3.03 
2010 10 -9.64 -19.83 -14.74 
2010 11 24.32 -32.64 -28.48 
2010 12 36.99 -41.86 -39.42 
2011 01 34.32 -40.64 -37.48 
2011 02 35.41 -45.47 -40.44 
2011 03 13.51 -28.89 -21.20 
2011 04   .66 -12.24  -5.79 
2011 05  6.44  -3.24   1.60 
2011 06 18.92   8.49  13.70 
2011 07 23.52  12.89  18.20 
2011 08 17.29   7.05  12.17 
2011 09  5.60  -2.54   1.53 
2011 10 -8.87 -17.77 -13.32 
2011 11 29.21 -36.18 -32.69 
2011 12 37.89 -43.07 -40.48 
2012 01 34.64 -40.62 -37.62 
2012 02 34.68 -45.02 -39.84 
2012 03 21.19 -37.55 -29.37 
2012 04 -4.35 -16.08 -10.21 
2012 05 13.39    .15   6.77 
2012 06 21.33   8.81  15.07 
2012 07 20.20   9.10  14.65 
2012 08 16.18   6.31  11.24 
2012 09 11.18  -1.12   5.03 
2012 10 -6.90 -15.64 -11.27 
2012 11 24.14 -31.67 -27.90 
2012 12 34.14 -40.75 -37.44 
2013 01 38.14 -44.24 -41.19 
2013 02 30.57 -42.42 -36.49 
2013 03 18.76 -31.96 -25.36 
2013 04  -.89 -12.98  -6.93 
2013 05 13.14   1.60   7.37 
2013 06 20.58   9.09  14.83 
2013 07 20.90   9.00  14.95 
2013 08 17.91   6.60  12.25 
2013 09  8.00   -.65   3.67 
2013 10 -5.09 -13.18  -9.13 
2013 11 22.44 -31.78 -27.11 
2013 12 28.99 -35.52 -32.25 
