1981 07 18.31   9.42  13.86 
1981 08 17.93   7.89  12.91 
1981 11 -3.70 -11.90  -7.80 
1981 12 -5.48 -13.97  -9.72 
1982 01 13.27 -21.60 -17.43 
1982 02 -2.70 -14.90  -8.80 
1982 03  2.42  -8.51  -3.04 
1982 04  6.43  -4.85    .79 
1982 05 13.19   1.23   7.21 
1982 10  1.64  -8.24  -3.30 
1982 11 -1.58 -11.00  -6.29 
1982 12 -1.89 -10.87  -6.38 
1983 01 -5.78 -14.59 -10.18 
1983 02  -.92 -10.22  -5.57 
1983 03  5.75  -6.80   -.52 
1983 04  9.00  -1.16   3.91 
1983 05 15.75   3.17   9.46 
1983 06 20.49   6.39  13.44 
1983 07 20.59   8.93  14.76 
1983 09 12.34   1.37   6.85 
1983 10  5.36  -3.48    .94 
1983 11  2.13  -8.00  -2.93 
1983 12 -4.91 -12.16  -8.53 
1984 01 -3.73 -12.44  -8.08 
1984 02 -3.08 -13.37  -8.22 
1984 03  7.45  -4.08   1.68 
1984 07 20.17   9.00  14.58 
1984 08 18.79   7.20  13.00 
1984 10  6.90  -3.89   1.50 
1985 01  4.46  -4.73   -.13 
1990 09 14.23   3.02   8.62 
2006 10 99.99  -2.18 -99.99 
2006 11 11.23 -19.71 -15.47 
2006 12 -2.64 -11.95  -7.29 
2007 01 -5.86 -12.81  -9.33 
2007 04  8.96   -.47   4.24 
2007 05 14.07   1.99   8.03 
2007 06 19.11   6.88  12.99 
2007 07 19.23   9.05  14.14 
2007 08 18.59   8.82  13.70 
2007 11  2.65  -4.21   -.78 
2007 12 -4.50 -11.37  -7.93 
2008 01 -8.18 -16.06 -12.12 
2008 02 -5.97 -15.48 -10.72 
2008 03  3.87  -5.77   -.95 
2008 04  6.85  -4.42   1.21 
2008 05 13.95   1.55   7.75 
2008 06 16.09   6.22  11.15 
2009 02 -3.25 -13.52  -8.38 
2009 05 17.01   2.35   9.68 
2009 06 17.56   6.45  12.00 
2009 07 21.72   9.93  15.83 
2009 08 18.11   6.72  12.41 
2009 10  7.67  -1.20   3.23 
2009 11 -4.71 -12.67  -8.69 
2009 12 -4.46 -11.81  -8.13 
2010 01 -7.20 -13.90 -10.54 
2010 02  1.01  -7.34  -3.16 
2010 03  2.93  -8.68  -2.87 
2010 04  8.02  -2.88   2.57 
2010 06 17.73   6.38  12.05 
2010 08 17.56   8.00  12.78 
2010 11 -2.70  -8.33  -5.51 
2010 12 10.47 -16.89 -13.68 
2011 01 -4.81 -11.37  -8.09 
2011 10  6.19 -99.99 -99.99 
2011 11 -8.96 -16.40 -12.68 
2011 12 -1.70 -10.90  -6.30 
2012 01 14.95 -23.50 -19.22 
2012 02   .24  -8.60  -4.18 
2012 03   . 2 -13.68  -6.83 
2012 04  9.95  -5.03   2.45 
2012 05 12.33   1.48   6.90 
2012 06 16.54 -99.99 -99.99 
2012 07 17.37   6.71  12.04 
2012 08 17.28 -99.99 -99.99 
2012 09 12.00   3.73   7.86 
2012 10  3.45  -5.81  -1.17 
2012 11 -8.81 -14.61 -11.71 
2013 01 -2.23 -10.44  -6.33 
2013 02   .10  -8.75  -4.32 
2013 03   .65 -11.46  -5.40 
2013 06 23.00   7.25  15.12 
2013 07 21.78   9.22  15.50 
2013 08 18.11   8.72  13.42 
2013 09 12.38   3.16   7.77 
2013 10  9.96   -.57   4.69 
2013 11 -2.89 -11.69  -7.29 
2013 12 -9.03 -16.11 -12.57 
2014 01  4.12  -5.29   -.58 
2014 02 -5.83 -14.51 -10.17 
2014 03  2.83  -9.93  -3.55 
2014 04  8.51  -4.08   2.21 
