# DOI: https://doi.org/10.5880/Kp.0001
# LICENCE: CC BY 4.0, please cite:
# Matzka, J., Bronkalla, O., Tornow, K., Elger, K. and Stolle, C., 2021.
# Geomagnetic Kp index. V. 1.0. GFZ Data Services,
# https://doi.org/10.5880/Kp.0001
# Matzka, J., Stolle, C., Yamazaki, Y., Bronkalla, O. and Morschhauser, A.,
# 2021. The geomagnetic Kp index and derived indices of geomagnetic activity.
# Space Weather, https://doi.org/10.1029/2020SW002641
# The Kp index was introduced by Bartels (1949) and is produced by Geomagnetic
# Observatory Niemegk, GFZ German Research Centre for Geosciences.
  International           Quietest Days                 Most Disturbed Days
  Month
            Q1  Q2  Q3  Q4  Q5    Q6  Q7  Q8  Q9  Q10   D1  D2  D3  D4  D5

 Jan 1935    6   9   7   8  14    29K 10  16K  5  12K   17  23* 28* 18* 24*
 Feb 1935   28  27  11   6   5    19   4   9  12   7K   13  14   2  21* 26*
 Mar 1935   29  28  12   6  10     7  26   5K 23  27K   14  15  13  16* 21*
 Apr 1935    2  29  28   6   7     1   3   5  22  27    11  12  13  10   9*
 May 1935    9   8  24   6   7     5  28  23  25  17     1  20* 11* 16* 12*
 Jun 1935   15   2   3  25  22    24  26  16   1  23    18   8   9   7  10 
 Jul 1935   17   5   6   3  30     4  18  10  13  20    25  24   8* 14* 22*
 Aug 1935   14  18   3  17  12    11   4  26   8  13    21* 23* 27* 20* 22*
 Sep 1935    2  22  21  13   3     6   8  14  20K  5K   11  25  23  17  18 
 Oct 1935    6   5   3   4  13     9   8  12K 26K 23K   21  24  20  27  22 
 Nov 1935   10  26  25   4   7    24  23  17   9  15    12  14  30   5* 13*
 Dec 1935   23  22   6   4   5    21  24K 20  11K  9K   28  15  16*  1* 27*