1989 07  26.09 -99.99 -99.99 
1989 08  20.45   8.60  14.53 
1990 03  -2.18 -99.99 -99.99 
1990 04   1.13 -11.62  -5.24 
1990 05  13.97  -2.02   5.97 
1990 06  19.00   6.00  12.50 
1990 07  23.91  10.91  17.41 
1990 08  21.07   7.48  14.27 
1990 09 -99.99   2.90 -99.99 
1990 10   -.17  -6.16  -3.16 
1990 11  -8.64 -15.93 -12.28 
1991 04 -99.99  -7.16 -99.99 
1991 05 -99.99   -.23 -99.99 
1991 06  19.84   8.33  14.08 
1991 07  23.60  11.05  17.32 
1991 08  22.39  10.96  16.67 
1991 09  11.62 -99.99 -99.99 
1991 10  -0.04 -99.99 -99.99 
1992 06  15.80 -99.99 -99.99 
1993 03 -99.99 -17.87 -99.99 
1993 06  16.87   5.58  11.23 
1994 02 -21.00 -99.99 -99.99 
1994 03  -5.19 -99.99 -99.99 
1995 01 -17.77 -99.99 -99.99 
1995 02 -17.12 -99.99 -99.99 
1995 03  -7.33 -99.99 -99.99 
1996 05   8.72 -99.99 -99.99 
1998 10   6.78 -99.99 -99.99 
