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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)      
                                            OCTOBER   2017
      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  -37 -39 -35 -31 -26 -25 -25 -32  -33 -26 -23 -21 -24 -24 -25 -30  -30 -27 -31 -31 -32 -35 -37 -35
 2  -30 -27 -25 -30 -28 -23 -21 -19  -18 -22 -22 -25 -22 -23 -24 -23  -22 -23 -24 -24 -24 -25 -24 -22
 3  -19 -18 -21 -25 -30 -28 -24 -16  -20 -19 -18 -17 -16 -17 -18 -17  -18 -21 -23 -22 -22 -21 -19 -16
 4  -14 -11 -12 -14 -14 -13 -10  -6   -9 -15 -16 -16 -14 -14 -13 -12  -15 -19 -20 -18 -20 -26 -35 -33
 5  -24 -20 -18 -16 -13 -10  -8  -7   -8 -10 -11 -11 -10 -10  -8  -3   -4  -9 -12 -11 -10 -12 -13 -11

 6   -8 -15 -17 -19 -23 -26 -21 -12  -14 -18 -21 -16 -15 -14 -16 -16  -16 -18 -16 -16 -18 -24 -25 -24
 7  -20 -17 -14 -14 -11  -7  -4  -3   -5  -9 -11 -10 -12 -11 -13 -12  -15 -15 -16 -15 -14 -13 -11  -6
 8   -3  -3  -1  -3  -8  -7  -6  -6   -7  -8  -9  -9  -9  -9 -10 -10  -10 -10 -11 -11 -11  -9  -9  -9
 9  -10 -12  -8  -3  -2  -2  -5  -5   -3  -2  -2  -1  -2  -3  -4  -6   -7  -5  -4  -5  -5  -4  -3  -3
10    0  -1  -1   1   3   5   5   6    5   3   1   0  -1  -1   0   0   -1  -2  -1   0   1   2  -1  -8

11  -14 -10  -6  -3 -10 -25 -28 -23  -31 -31 -24 -28 -30 -20 -21 -23  -28 -34 -40 -40 -39 -36 -37 -31
12  -33 -26 -31 -42 -49 -47 -46 -47  -52 -42 -36 -39 -39 -33 -43 -35  -35 -38 -37 -36 -35 -38 -35 -32
13  -28 -23 -22 -29 -41 -33 -25 -20  -21 -24 -39 -53 -53 -48 -43 -34  -41 -50 -47 -40 -46 -46 -40 -46
14  -45 -46 -40 -44 -58 -70 -54 -43  -40 -39 -36 -42 -38 -35 -36 -34  -31 -26 -26 -30 -33 -30 -29 -27
15  -29 -43 -47 -49 -60 -58 -48 -42  -35 -31 -33 -38 -48 -48 -34 -40  -41 -49 -49 -43 -37 -36 -34 -29

16  -22 -20 -21 -24 -32 -30 -24 -23  -23 -30 -35 -32 -29 -23 -22 -22  -24 -27 -28 -30 -27 -23 -21 -20
17  -19 -19 -22 -25 -21 -17 -16 -15  -23 -29 -31 -29 -26 -25 -20 -21  -23 -25 -28 -32 -30 -27 -24 -22
18  -19 -19 -25 -26 -22 -19 -17 -20  -23 -24 -22 -22 -23 -20 -14 -12  -12 -12 -13 -12 -12  -9  -8 -13
19  -11  -9  -8  -7  -5 -12 -21 -25  -25 -35 -31 -22 -21 -17 -18 -19  -21 -25 -35 -36 -30 -24 -21 -22
20  -21 -16 -15 -15 -19 -24 -27 -22  -18 -19 -19 -19 -20 -16 -14 -15  -17 -21 -21 -20 -19 -19 -17 -15

21   -9  -4  -9 -10 -12  -7   1   0   -4  -6  -3   1   0   2  -2  -1    0  -7 -12 -11 -15 -14  -8  -9
22  -16 -18 -17 -17 -14 -14 -15 -18  -17 -18 -17 -18 -18 -15 -14 -12   -9 -11 -12 -11  -7  -1   2  -3
23    4   6   5   2   0   0   1   0   -7 -11 -13 -13  -6  -4  -6  -4   -2  -3  -3  -4  -7  -8 -10  -8
24   -2   1   1  -2   0   1   2   1    7  10  10   8  -4  -6 -11 -19  -31 -22 -21 -25 -27 -23 -27 -24
25  -12 -11 -21 -33 -32 -26 -21 -30  -33 -31 -26 -25 -24 -24 -22 -20  -21 -19 -16 -14 -12 -15 -16 -13

26  -12 -13 -21 -21 -18 -14 -14 -17  -22 -26 -33 -44 -40 -47 -51 -37  -39 -40 -39 -33 -32 -31 -27 -22
27  -21 -19 -21 -27 -23 -20 -18 -22  -23 -23 -23 -22 -21 -18 -17 -16  -17 -19 -18 -20 -15 -14 -10  -8
28   -9 -10 -11 -14 -16 -16 -19 -21  -21 -21 -20 -18 -19 -21 -18 -16  -14 -15 -15 -15 -15 -14 -11 -10
29   -7  -8 -11 -12 -11 -10  -8  -7  -10 -11 -11  -9  -9  -9 -10 -11   -9  -8  -9 -12 -12 -12 -11 -10
30  -10 -10 -13 -14 -15 -13 -11 -12  -11 -10  -8  -8  -8  -9  -8  -7   -6  -6  -6  -6  -6  -6  -6  -8

31   -8  -6  -9 -10  -9  -9  -9  -6   -7  -7  -8  -9  -9  -6  -3  -1   -1  -2  -2  -2  -1   1   1   2