1973 03  5.15 -99.99 -99.99 
1975 11  4.92 -99.99 -99.99 
1984 06 99.99  11.68 -99.99 
1984 08 99.99  12.59 -99.99 
1985 06 99.99  11.58 -99.99 
1991 02 -2.58 -99.99 -99.99 
1991 03  4.08 -99.99 -99.99 
1991 05 19.93 -99.99 -99.99 
1991 06 27.90 -99.99 -99.99 
1991 09 21.45 -99.99 -99.99 
1992 03  8.58 -99.99 -99.99 
1992 04 14.00 -99.99 -99.99 
1992 05 20.78 -99.99 -99.99 
1992 06 24.90 -99.99 -99.99 
1992 07 25.05 -99.99 -99.99 
1992 09 18.85 -99.99 -99.99 
1993 06 24.38 -99.99 -99.99 
1993 08 26.45 -99.99 -99.99 
1993 10 13.32 -99.99 -99.99 
1994 09 99.99  11.44 -99.99 
1995 03 99.99   -.38 -99.99 
1995 05 99.99   8.85 -99.99 
2000 01 -1.76 -99.99 -99.99 
2000 03  6.24  -1.32   2.45 
2000 04 19.56   7.78  13.67 
2000 05 21.29   7.02  14.15 
2000 06 24.30  12.31  18.30 
2000 07 99.99  16.51 -99.99 
2000 08 28.68  13.69  21.18 
2000 09 19.34   8.43  13.89 
2000 10 13.52   2.83   8.17 
2000 11  6.15   -.91   2.62 
2001 01  3.15  -2.89    .13 
2001 02   .58  -5.57  -2.49 
2001 03  8.60  -1.16   3.72 
2001 04 16.70   6.00  11.35 
2001 05 20.23   7.91  14.07 
2001 06 23.68  12.43  18.05 
2001 07 33.46  16.83  25.14 
2001 08 29.55  13.69  21.62 
2001 09 21.32  10.16  15.74 
2001 10 12.65   2.53   7.58 
2001 11  6.12   -.19   2.96 
2001 12 -4.60 -11.74  -8.17 
2002 04 99.99   1.45 -99.99 
2002 07 99.99  18.40 -99.99 
2002 09 99.99  11.73 -99.99 
2003 01  -.41  -7.00  -3.70 
2003 03  2.59  -5.44  -1.42 
2003 04 13.15   1.42   7.28 
2003 05 25.91  10.42  18.16 
2003 06 24.35  11.46  17.90 
2003 07 26.25  15.35  20.80 
2003 08 26.37  14.02  20.19 
2003 09 20.63   7.52  14.07 
2003 10 13.85   2.74   8.29 
2003 11  4.67   1.28   2.98 
2003 12  1.72  -3.88  -1.08 
2004 01  1.57  -1.47    . 5 
2004 02  2.35  -6.13  -1.88 
2004 03  9.50   1.12   5.31 
2004 04 15.81   3.25   9.53 
2005 02 99.99  -8.02 -99.99 
2005 03 99.99  -5.58 -99.99 
2006 02 99.99 -13.00 -99.99 
2006 06 99.99  14.43 -99.99 
2007 02 99.99  -5.82 -99.99 
2008 07 29.60  15.17  22.38 
2012 09 24.27 -99.99 -99.99 
2012 10 18.56 -99.99 -99.99 
2012 11  8.77 -99.99 -99.99 
2012 12 -1.23 -99.99 -99.99 
