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(The data for this month in the wdc-like format is here.)

                                      WDC for Geomagnetism, Kyoto
                                Hourly Equatorial Dst Values (FINAL)      
                                            JANUARY   2018
      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   10   6  -1   0  -7 -16 -19 -17  -16 -17 -17 -12  -8  -7 -14 -14  -14 -11  -7  -3  -1   0   0   2
 2    4   3   3   1  -2  -7 -11  -9   -7  -5  -5  -6  -3  -4  -6  -4   -3  -4  -1   2   4   4   5   8
 3    9  12  12  11   8   4   2   1   -1  -8  -6  -1   5   4   2   2    2   4   1   0   2   3   4   6
 4    8   8   9   9   5   0  -6  -7   -5  -4  -6  -5  -5  -3  -3  -3   -3   0  -2  -2  -6  -5  -5  -3
 5   -2  -1   0   2  -3  -5  -5  -6   -7  -4  -1   1   2  -4  -2   1    0   0  -1   3   5   5   6   6

 6    4  -3  -5  -3   0   2   4   3    1   0  -4  -5  -6  -6  -4  -3   -1   0   0   0   0   2   1   2
 7    2   3   5   8   7   8   8   7    8   6   4   2   4   3   3   6    7   7   6   5   6   8   8  11
 8    9   9  12  13  14  13  17  35   32  29  26  26  28  17   3  -6  -11  -5   2   3   5   7   4   2
 9    2  -7 -10  -9 -10 -15 -17 -12   -8  -6  -5  -6 -10 -12 -12 -10  -11 -10  -8  -4  -4  -4  -7  -7
10  -12 -12 -12 -10  -7  -5  -5  -5   -4  -3  -4  -1   2   1  -2  -3   -5  -4  -2  -1  -1  -1  -4  -6

11   -5  -4  -2   0  -2  -1   0  -2   -2  -1   1   6   4   3   4   3    1   2   2   3   1   2   1   1
12    2  -1  -3  -1   0  -2  -3  -2   -1  -1  -3  -4  -3  -2  -1  -2   -5  -5  -3   0   5   6   3   2
13    3   4   6   8   8   5   3   5    4   0  -1   3   3   8   9   9    8  11  11   1   8   4  11  18
14   23  14  14   8   2  -9 -17 -20  -20 -18 -16 -12 -12 -10 -13 -10  -12 -11 -10  -9  -8  -5  -2   4
15    0   0  -3  -1  -5 -14 -20 -17  -13  -9 -12  -8  -4  -1  -4  -8   -8  -7  -6  -5  -4  -2   0   2

16    3   3   4   6   5   0  -3  -4   -6  -8  -9  -9  -7  -6  -3  -4   -4  -4  -4  -6  -7  -5  -3  -4
17   -1  -1   1   0  -2  -3  -3  -1    2   3   2   0   0  -2   0  -1   -3  -2  -1  -2  -1   0   0   1
18    4   5   3   4   4   2   2   5    5   5   7  10  11  10   8   7    6   7   8   8   7   7   4   4
19    8   8   6   5   4  -6 -15 -23  -28 -27 -16  -5   0   1  -2  -4   -4  -3  -3  -2  -3  -2  -3   0
20   -2  -2   0   2   1  -2  -8 -11  -12 -10  -8  -6  -4  -4  -4  -6   -8  -7  -7  -4  -3   0  -1  -1

21    1   0   5   8   9  11  11   7    2  -4  -2  -4  -3 -12 -19 -17  -15  -9  -7  -6  -6  -3   1   5
22    3   5   9   6   7   3  -5 -14  -20 -24 -16 -11  -9  -8  -6  -5   -9 -12 -14 -16 -14 -12 -13 -14
23  -16 -16 -15 -12  -9  -7  -7 -10  -11 -12 -12 -10  -7  -6  -7  -7   -8  -8  -7  -6  -7  -5  -5  -4
24   -5  -5  -4  -2   1   4   6   4    2  -1  -1   4   5   2   2   6    7   6  12  13  13   7  -4  -7
25  -10 -10 -11 -10  -9 -12 -13 -18  -19 -17 -20 -20 -16 -13 -14 -16  -23 -21 -18 -19 -15 -10  -6  -7

26  -10  -9  -4   0   2   4   5  -8  -17 -13 -12 -11  -9  -6  -5  -7   -6  -9  -8  -3   4   7   6   4
27    2  -3  -4  -5  -3   2  -1  -6   -9 -15 -12  -7  -9 -13 -14 -13  -13  -9  -5  -5  -2  -4  -5  -5
28   -6  -5  -3  -2   1   3   4   4    0  -2  -1   4   5   2   3  -2   -2  -3  -2  -2   0   0   4   4
29    6   5   3   2   1   1   2   5    1  -8  -6  -3   0   3   4   2    0   0   2   1   4   6   7   8
30    7   8   5   0  -2   1   4   0   -6  -8  -6  -1   4   3   0   0    1   2   4   5   7  11  16  17

31   16  14  12  10  10   9   6   2    1   0  -6  -7  -7  -2  -5 -11  -11 -10 -11 -13  -8  -2   2   0