1998 02  14.51   6.33  10.42 
1998 03  19.37   7.88  13.62 
1998 04  20.29   7.84  14.06 
1998 07 -99.99  13.18 -99.99 
1998 08  30.73  14.11  22.42 
1998 09  28.32  13.13  20.72 
1998 10  24.36   8.53  16.44 
1998 11 -99.99   6.86 -99.99 
1998 12  13.60   2.19   7.89 
1999 01  12.85   3.51   8.18 
1999 02  15.34   4.41   9.87 
1999 03  16.64   4.80  10.71 
1999 11  19.31   8.14  13.73 
2000 01  14.74   6.06  10.40 
2000 02  15.49   7.87  11.68 
2000 03 -99.99   7.24 -99.99 
2001 08  29.27  13.42  21.34 
2001 09 -99.99  11.91 -99.99 
2003 03 -99.99   7.14 -99.99 
2003 04  18.61   6.00  12.30 
2003 05 -99.99   8.55 -99.99 
2003 06  27.21  11.73  19.46 
2003 07 -99.99  12.59 -99.99 
2003 08 -99.99  13.56 -99.99 
2003 09 -99.99  12.22 -99.99 
2003 10 -99.99   9.82 -99.99 
2004 03  25.17   6.78  15.97 
2004 04  24.13   7.22  15.67 
2004 05  25.26   9.56  17.41 
2004 06 -99.99  11.98 -99.99 
2004 07 -99.99  13.49 -99.99 
2004 09  29.91  12.10  21.00 
2004 10  23.86   8.93  16.40 
2004 11  17.15   5.97  11.56 
2005 05  23.65  10.85  17.25 
2005 08  27.42  12.63  20.02 
2005 09  24.91  11.27  18.09 
2006 08  27.11  12.68  19.89 
