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(The monthly data in the wdc-like format is here.)

                                      WDC for Geomagnetism, Kyoto
                                Hourly Equatorial Dst Values (FINAL)      
                                          SEPTEMBER   2013
      unit=nT                                                                                      UT
      1   2   3   4   5   6   7   8    9  10  11  12  13  14  15  16   17  18  19  20  21  22  23  24
DAY
 1  -18 -17 -15 -15 -14 -15 -15 -18  -13  -8  -8  -9 -12 -18 -23 -25  -22 -22 -24 -26 -30 -31 -29 -26
 2  -24 -22 -17 -12 -10 -20 -19 -15  -17 -21 -21 -20 -17 -19 -24 -22  -19 -20 -25 -24 -20 -17 -16 -14
 3   -9  -5   2   7   9   8   2   1    4  -3  -5  -9 -11 -11 -13 -11   -6  -3  -3  -7  -7  -7 -13 -20
 4  -15 -10  -6  -2  -1  -2  -3  -5   -3  -1  -1  -9 -11  -9  -7  -6   -3  -1   0  -2  -4  -9 -11 -10
 5   -4  -1   0   2   4   4   3   3    4   3   0   0   2   2   2   2    2   2   1  -1  -4  -9 -12  -9

 6   -8  -3  -1  -3   1   2   3   3    2   1  -2   0   1   3   2  -1   -3  -5  -8 -11 -14 -19 -20 -19
 7  -13 -10  -9  -6  -4  -7  -8  -5   -3  -4  -4  -2   2   3   2   2    1   1   1   2   1   1   0   1
 8    2   8   6   0   8   9   5   0   -1  -2  -4  -8  -9  -9  -8  -6   -6  -5  -3  -3  -5  -7  -9 -12
 9  -12 -12 -11  -9  -7  -6  -5  -6   -3  -3  -8  -8  -7  -5  -4  -4   -2   1   5   5   3   1  -2  -5
10   -5  -8  -8  -4  -1   2   3   3    2  -2  -6  -7  -1   0  -3   5    4   5   2   3  -6 -11 -10  -6

11   -2  -1   3   6   6   5   3  -1   -3  -4  -2   0   1   1   1  -1   -5  -6  -6  -2   1   2   0  -2
12   -1   1   7   8   5   1  -4  -6   -8  -5  -1   3   4   8   9   7   10  13  11  10   2  -7  -8 -10
13   -6  -3  -1   1   2   0   0  -2   -3  -1   2   2  -1   0   3   4    3   3   1  -7  -7  -7  -6  -5
14   -4  -4  -2  -3  -3  -3  -5  -6   -6  -4  -4  -3  -3   0   0  -1    0   2   0  -2  -1  -1  -2  -4
15   -5  -3  -1   1   1   2   1   1    2   3   3   3   2   3   5   3    3   4   3   2   1  -1  -3  -4

16   -2  -5  -5  -3  -5  -4  -5  -5   -4  -1   1   1   0  -1  -2  -2   -2  -1  -1  -1  -3  -4  -4  -1
17    5   8   6   5  -3 -10  -9 -12   -9 -10  -9  -7  -7  -3   3   9    8   6   9  14   8  -3  -5  -7
18   -7  -2   3   1   1   1   1   4    4   5   5   9  10  17  14  10    4   7  10   3  -4  -5  -8 -10
19   -6  -4  -5  -6 -11 -17 -15 -14  -16 -10 -10 -12 -15 -10  -7  -6   -6  -9 -10 -11 -15 -17 -17 -13
20   -6   0   2  -1  -5  -8 -10 -14  -13 -11 -12 -11  -9  -8  -6  -3   -2  -2   0  -1  -3  -9  -8  -8

21   -7 -11 -11  -7  -5  -2  -2  -3   -5  -5  -1   3   4   1   1   0   -2   3   3   2   0  -2  -6  -6
22   -6  -4  -5  -4  -8  -6  -3  -5   -7  -6  -5  -3  -2  -3  -4  -4   -5   0   4   5   2  -1  -3  -4
23   -4  -5  -4  -4  -2  -4  -2  -1   -1  -2   0   1   2   1   1   1    5   8   8   7   4   1  -2  -7
24   -7  -8  -8  -4  -2   1   2   4    8  15  10 -11 -22 -11 -19 -18  -17 -11  -8  -9 -13 -19 -23 -22
25  -19 -13 -11  -8  -9 -10  -9 -11  -10 -10  -9  -8  -8  -6  -4  -3    0   2   2  -1  -5  -5  -8 -11

26  -12  -8  -4  -3  -3  -3  -2  -1   -2  -2  -2   0   2   3   3   1   -1  -3  -1  -2  -3  -3  -1   2
27    5   6   6   5   5   7   6   5    4   4   4   4   4   2   2   3    4   1   2   3   2   2   3   3
28    5   7   6   3   1   1   1   1    0   0   0   1   0   0   1   3    4   3   3   2   3   6   7   6
29    7   8   8   6   3   3   4   5    6   8   9   7   7   5   6   8    9   8   8  10  14  11  10  11
30    9   6   8   8   8   6   4   6    7   5   3   2   2   3   2   2    2   5   8   8   7   8   8   8