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

                                      WDC for Geomagnetism, Kyoto
                                Hourly Equatorial Dst Values (FINAL)      
                                              APRIL   2005
      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    0   1   4   8   5   5   5   2   -8 -11 -11  -4  -1   6   8   3    6   5   2   0   2   1  -4  -5
 2   -5  -1   3   5   8   9   9   8    9   8   2   5   6  10  11  12   11  14  13  14  14  13  11   8
 3    8  14  18  20  12   7   5   4    0   0   1   5   7   7   5   6    7  13  13  14  17  17   5   0
 4    4   9  10  12  17  20  16   8    1   1   4  12  10   6   4  -4  -11 -16 -13 -17 -19 -32 -40 -54
 5  -47 -51 -65 -67 -70 -70 -69 -70  -60 -47 -41 -38 -32 -35 -35 -30  -30 -30 -31 -24 -24 -26 -26 -32

 6  -31 -26 -30 -29 -29 -26 -21 -23  -24 -21 -16 -13 -15 -17 -18 -17  -11 -13 -18 -24 -27 -28 -25 -25
 7  -22 -22 -20 -22 -25 -23 -19 -18  -22 -22 -17 -13 -16 -17 -17 -15  -14 -13 -12 -13 -15 -17 -14 -12
 8  -10 -11  -8  -8 -11 -12 -10 -11  -10 -12 -15 -14 -11  -8  -4  -2   -3  -5  -7  -5  -4  -4  -4  -5
 9   -3  -3  -4  -3  -3  -2  -1  -2   -5  -5  -7  -5  -3   0   5   7   10  12  12  13  15  15  18  15
10   10   9   6   4   3   4   3   3    3   4   6   6   7   4   4   5    8   9   8   9   9   6   4   5

11    7   6   5   5   6   8  10  10    8   8  10  12  15  19  25  27   31  20   4 -12 -30 -34 -27 -35
12  -43 -46 -49 -50 -52 -62 -53 -45  -44 -43 -36 -37 -33 -32 -31 -27  -26 -26 -25 -21 -19 -15 -21 -24
13  -17 -16 -21 -25 -34 -37 -39 -30  -32 -25 -22 -20 -19 -20 -19 -22  -31 -35 -35 -32 -24 -26 -33 -33
14  -32 -30 -30 -27 -32 -30 -29 -26  -23 -23 -28 -31 -27 -19 -20 -21  -22 -19 -14 -11 -15 -14 -14 -12
15  -14 -18 -20 -27 -29 -28 -24 -20  -20 -16 -18 -18 -15 -13 -17 -17  -14 -18 -21 -17 -16 -19 -17 -19

16  -20 -24 -26 -27 -27 -26 -24 -20  -15 -13 -12 -10  -9  -9 -10 -12  -10 -10 -11  -8  -8 -10  -8  -8
17   -8 -10 -11 -13 -12 -10  -9  -6   -6  -6  -3  -2  -4  -5  -6  -5   -5  -3  -3  -1   2   4   4   3
18   -2  -6 -11 -13 -18 -22 -18  -8   -3  -1  -3  -5  -3  -1   3   2    1  -2  -8  -6  -6  -7 -13 -15
19  -15 -16 -21 -23 -22 -19 -18  -9   -2   2   3   7   4   4   1   4    7   8   9   9   9  15  17  24
20   17  16  12   9 -12 -27 -28 -20  -22 -12 -12 -25 -20 -20 -18 -18  -17 -17 -21 -25 -22 -20 -18 -16

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

26    2   1   0   1   1   0   1   1    0   0   2   2   3   5   8   8    7   7   7   6   3   2   3   5
27    4   5   7   8   7   6   5   6    7   6   7   5   3   4   4   3    1   1   1   2   4   7   8   9
28   11  11  13  13  13  12  12  12   11  12  12  11  12  12  10   6    6   7   7   9  10  13  12  14
29   16  16  19  24  24  21  18  14   11  13  14  10   8   7   7   7   14  18  15  -1 -23 -29 -24 -16
30  -15 -28 -40 -38 -31 -24 -18 -16  -20 -14 -13 -13  -5  -7 -17 -15  -16 -10 -11 -11 -18 -16 -11  -8