DAILY SUNSPOT NUMBERS 1997
===============================================================================
 Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec   Yr Day
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   0     9     0    17     0    20     0     0    65    25    43    46  1997 01 
   0    23     0    31     0    22     0     8    59    21    53    41  1997 02 
   0    30     0    37     0    15     8    13    48    21    54    33  1997 03 
  11    31     0    27     8    11     9     9    42    21    59    36  1997 04 
  10    23     0    25     9    11     8    17    50    21    51    32  1997 05 
  12    18     8    20     8    12    10    36    56    18    50    38  1997 06 
   8    15    10    11     8    12    26    41    68    17    43    40  1997 07 
   0     8    19    10    10    19    16    45    87    16    37    58  1997 08 
   9     8    18    21     9    16    17    38    91    20    25    67  1997 09 
   9     0    12    24    17     8    13    21    93    22    19    57  1997 10 
   7     0    13    23    16     8     0    36    86    24    29    61  1997 11 
   0     0    15    12    10    16     0    48    88    25    20    68  1997 12 
   0     0    14    22    12    18     0    46    85    29    26    53  1997 13 
   0     0    13    24    13    19     9    39    70    28    38    42  1997 14 
  11     0    25    28    11    19     0    37    65    28    30    41  1997 15 
  17     9    11    26    17    20     0    21    61    34    29    35  1997 16 
   8     0    12    13    17    13     7    18    49    40    44    34  1997 17 
  11     8    12     9    21    18     7    16    33    35    43    20  1997 18 
   0     8     0    11    27    10     0     9    16    25    43    15  1997 19 
   0     7     9     0    39     8    11     8    14    21    40    19  1997 20 
   0     0     0     0    52     7     0     9    26    20    41    22  1997 21 
   0     0     0     0    48     0    11     8    45     9    47    32  1997 22 
   0     0     0     9    40     9    20     9    42     0    55    45  1997 23 
   9     7     0     9    30     9    29     0    42    10    49    52  1997 24 
   8     8     0     8    29    19    39    15    49    11    30    42  1997 25 
   8     0     0    17    35    15    34    21    26    11    26    37  1997 26 
   9     0    10    11    25    12    25    24    30    23    31    41  1997 27 
   0     0    14    12    17     8    11    33    18    33    33    38  1997 28 
  10          18     8    14     8    11    35    16    30    39    41  1997 29 
  11          20     0    12     0     0    43    19    38    42    45  1997 30 
  10          17          19           0    53          35          45  1997 31 
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  5.7   7.6   8.7  15.5  18.5  12.7  10.4  24.4  51.3  22.8  39.0  41.2
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Annual mean = 21.5.  Values are final.