a        b        c         d        e        f       g        h       i       j        k        l         m        n        o        p   $null$
a            30,323      817    3,530     3,621      198    1,124     223      274     325     393      701      873     1,413      137      481      991        0
b             1,934   20,894    4,994     9,037      758    1,844     172    1,843   1,057     269    3,404    4,074     1,432      212      913    2,113        0
c             4,914    2,904   60,509    15,918      662    3,654     703    1,039     338   1,120    1,844    1,328     3,815      381    1,653    4,944        1
d             3,929    4,572   13,474   187,705    3,282    7,282     269    3,066     959   2,349    2,853    2,538     2,881      185      633    1,484        5
e               260      226      511     3,585   14,780    2,226     720      550      64     475    1,480      384       327      538       74       99        1
f             1,351      924    4,156    10,968    2,251   49,208     335      938     245   1,230    3,327    2,523     3,199      236      418      778        1
g               385      237    1,454       705    1,508      722   2,877      135      63     186      541      537     1,108    1,259      470    1,508        0
h               318      948      586     2,288      847    1,050     103   13,118     175     343    2,009      799       576      155    2,131      217        1
i               368      921      490     1,541      166      413      75      328   8,385   1,118      507      682       301      122      198    2,237        1
j               158       90      196       698      168      515      23      336     770   4,937      497      377       328       96       96      900        0
k               840    1,308    1,344     2,616      963    2,984     215    1,370     575     533   45,208    2,838     4,490      549      489      944        0
l             1,185    2,731    1,325     2,220      281    3,641     228      593     716     536    3,486   38,607     6,866    1,022    1,317    1,203        0
m             2,226    1,188    7,989     3,131      193    7,488   2,724      414     203     909    8,770    8,796   345,556    6,831    6,682   15,409        0
n               157       91      236       170      372      225   1,049       66      42     146      868      555     1,511   14,928      473      846        0
o               416      543    1,052       368       29      335     233    1,288      78      65      497      898     1,511      371   20,888    1,620        0
p               689    1,113    2,728     1,104       44      424     311      102     954   1,173      497      655     2,575      861      884   27,464        0