a        b        c         d        e        f       g        h        i       j        k        l         m        n        o        p   $null$
a            33,576      965    2,964     2,416      170    1,054     169      213      312     147      515      597     1,419       98      291      515        3
b             1,207   32,314    3,208     5,890      524    1,592     164    1,040      802     140    1,973    2,234     1,998      194      609    1,057        4
c             2,783    2,614   72,208    11,209      454    2,525     457      626      397     259    1,255      939     6,070      228    1,015    2,684        4
d             2,425    4,571   10,605   199,914    2,044    5,582     335    1,619      905     698    2,070    1,914     3,193      158      475      943       15
e               236      420      556     2,777   17,029    1,920     560      402      111     153      932      312       425      320       65       77        5
f               910    1,238    2,806     6,989    1,635   57,505     270      652      275     534    2,248    1,665     4,554      140      253      410        4
g               337      307    1,110       465      935      504   4,932      150       78      68      347      328     2,199      765      309      858        3
h               278    1,015      621     1,613      566      941      92   15,982      162     169    1,407      583       773       94    1,219      149        0
i               297      793      560     1,029      139      455      53      241   11,098     513      331      498       370       58      152    1,265        1
j               194      132      274       626      127      580      41      276      635   5,347      483      269       483       42       69      606        1
k               490    1,436    1,047     1,523      636    2,240     179    1,147      439     312   49,587    2,036     5,252      257      265      419        1
l               846    2,080    1,064     1,215      266    2,458     186      550      575     307    2,288   45,046     7,459      368      709      536        4
m             1,218      969    3,331     1,444      220    2,814     560      441      241     295    4,470    3,888   392,054    1,484    1,720    3,357        3
n               145      156      211       101      315      169     441       85       63      48      453      465     2,578   15,789      271      445        0
o               317      476      896       243       50      249     123      948       83      26      322      509     2,749      196   22,202      803        0
p               579      911    2,197       689       71      414     159      116      898     362      347      461     5,090      449      417   28,416        2