1999-09-01  16.7  22.4  11.7 -99.9     10.2
1999-09-02  14.8  19.0  11.0   0.3 1    2.2
1999-09-03  16.4  19.5  15.0  14.3 1    0.0
1999-09-04  15.6  20.5  13.5   0.1 1    0.6
1999-09-05  16.9  22.6  14.0 -99.9      2.6
1999-09-06  16.9  24.6   9.1 -99.9     11.9
1999-09-07  17.3  25.4   9.5 -99.9     10.1
1999-09-08  17.3  24.9  10.7 -99.9      8.2
1999-09-09  20.4  26.7  16.0 -99.9      8.1
1999-09-10  21.3  27.7  16.0 -99.9      9.0
1999-09-11  20.4  27.4  15.4 -99.9     10.6
1999-09-12  17.5  26.5  10.2 -99.9     10.9
1999-09-13  18.6  26.2  12.3 -99.9     11.0
1999-09-14  18.1  27.5  10.0 -99.9      9.9
1999-09-15  18.7  28.3  10.9 -99.9     10.1
1999-09-16  18.6  26.5  12.4 -99.9      7.8
1999-09-17  19.1  28.3  12.1 -99.9      9.9
1999-09-18  20.8  26.8  13.3   0.0 7    3.6
1999-09-19  20.2  25.7  16.7 -99.9      5.6
1999-09-20  19.5  25.7  14.1 -99.9      6.4
1999-09-21  19.0  24.1  16.5   9.8 1    1.9
1999-09-22  18.6  25.5  15.4 -99.9      8.9
1999-09-23  19.0  27.2  11.4 -99.9      8.8
1999-09-24  21.4  27.9  17.4 -99.9      7.8
1999-09-25  19.7  27.8  12.7 -99.9      9.8
1999-09-26  21.6  32.2  14.5 -99.9     10.1
1999-09-27  18.6  26.2  14.5   2.6 7    7.3
1999-09-28  17.3  27.1  11.6  22.1 3    4.6
1999-09-29  16.2  21.3  13.6 -99.9     10.2
1999-09-30  15.1  23.1   9.5 -99.9      8.3