1981 09 20.12   9.43  14.78 
1984 07 99.99  12.88 -99.99 
1984 08 99.99  12.39 -99.99 
1986 03  5.15 -99.99 -99.99 
1991 03  3.10 -99.99 -99.99 
1991 04 14.60 -99.99 -99.99 
1991 05 18.89 -99.99 -99.99 
1991 07 29.09 -99.99 -99.99 
1991 08 24.78 -99.99 -99.99 
1991 09 21.47 -99.99 -99.99 
1992 04 13.10 -99.99 -99.99 
1992 06 24.60 -99.99 -99.99 
1992 07 27.78 -99.99 -99.99 
1992 08 30.05 -99.99 -99.99 
1992 09 19.10 -99.99 -99.99 
1993 06 22.64 -99.99 -99.99 
1993 07 24.61 -99.99 -99.99 
1993 08 23.80 -99.99 -99.99 
1993 11 -2.68 -99.99 -99.99 
2000 01 -3.28  -9.64  -6.46 
2000 03  4.50   -.71   1.89 
2000 04 19.02   7.70  13.36 
2000 05 21.14   9.06  15.10 
2000 06 23.01  12.38  17.69 
2000 07 99.99  15.84 -99.99 
2000 08 26.81  15.40  21.10 
2000 09 17.82   9.06  13.44 
2000 10 14.53   4.05   9.29 
2000 11  5.88 -99.99 -99.99 
2001 01  2.44  -2.44    . 0 
2001 02  -.35  -6.14  -3.24 
2001 03  6.59 -99.99 -99.99 
2001 04 16.67   6.18  11.42 
2001 05 18.48   8.28  13.37 
2001 06 21.66  12.24  16.95 
2001 07 31.34  18.65  24.99 
2001 08 28.55  14.97  21.76 
2001 09 19.03   9.81  14.42 
2001 10 13.89   3.81   8.85 
2001 11  4.81   -.15   2.33 
2002 04 99.99   4.58 -99.99 
2002 10 99.99   4.86 -99.99 
2003 01 -2.01 -99.99 -99.99 
2003 03  1.71  -3.81  -1.04 
2003 04 11.44   2.13   6.78 
2003 05 25.48  13.18  19.33 
2003 06 23.34  12.25  17.79 
2003 07 26.18  15.92  21.05 
2003 08 25.14  14.24  19.68 
2003 09 20.18   8.46  14.32 
2003 10 11.50   4.00   7.75 
2003 11  4.96   1.75   3.35 
2003 12  1.73  -3.50   -.88 
2004 02   .19  -5.58  -2.69 
2004 03  7.68   1.41   4.54 
2004 04 14.59   4.09   9.34 
2005 02 99.99  -6.89 -99.99 
2005 03 99.99  -5.33 -99.99 
2006 06 99.99  13.99 -99.99 
2007 02 99.99  -6.53 -99.99 
2008 07 27.51  15.94  21.72 
2012 09 22.82   9.70  16.26 
2012 10 15.99 -99.99 -99.99 
2012 11  7.66 -99.99 -99.99 
