1968 01  4.03  -6.81  -1.38 
1970 07 25.87  15.27  20.57 
1974 09 99.99  11.93 -99.99 
1974 10 99.99   5.00 -99.99 
1974 11 11.18    .99   6.08 
1975 07 23.35  16.87  20.11 
1975 09 99.99  13.63 -99.99 
1976 01  3.94  -4.67   -.36 
1976 02 99.99    .-3 -99.99 
1978 01 99.99  -7.28 -99.99 
1978 02  1.45  -7.51  -3.03 
1980 11 99.99    .24 -99.99 
2010 10 21.29   6.56  13.92 
2010 11 15.43   1.21   8.32 
2010 12  3.05  -5.32  -1.13 
2011 01  6.56  -4.69    .93 
2011 02 12.00  -2.49   4.75 
2011 03 14.69   1.56   8.12 
2011 04 20.53   6.37  13.45 
2011 05 23.99  10.35  17.17 
2011 06 28.70  14.42  21.56 
2011 07 29.58  17.45  23.52 
2011 08 28.40  16.48  22.43 
2011 09 24.07  14.02  19.04 
2011 10 20.08   5.60  12.84 
2011 11 16.43   2.41   9.42 
2011 12 11.98    .65   6.31 
2012 01 10.09  -2.18   3.95 
2012 02 12.75  -2.08   5.33 
2012 03 19.37   4.38  11.87 
2012 04 20.39   5.65  13.02 
2012 05 24.91  12.31  18.61 
2012 06 26.84  12.56  19.70 
2012 07 29.28  17.99  23.63 
2012 08 26.93  16.19  21.56 
2012 09 24.26  12.02  18.14 
2012 10 19.03   6.62  12.82 
2012 11 13.03   -.87   6.08 
2012 12 10.68    .51   5.59 
2013 01  9.64  -1.73   3.95 
2013 02  7.76  -2.79   2.48 
2013 03 10.38  -1.94   4.22 
