name          pop1950      b1950     fb1950  tract1950
  "akronoh"     274605      23762      21196         57
 "atlantga"     331314     121285       4184         74
 "austintx"     132459      17667       3562         15
 "baltimmd"     949708     225099      51434        168
 "berkelca"     113805      13289      10576         26
 "birminal"     326037     130025       3896         58
 "bostonma"     801444      40057     144092        156
 "bridgect"     158709       6748      28790         38
 "buffalny"     580132      36645      70150         72
 "cambrima"     120740       5235      20459         30
 "camdennj"     124555      17422      12193         24
 "chattatn"     131041      39276       1103         30
 "chestepa"      66039      13830       5259         17
 "chicagil"    3620962     492265     526058        921
 "cincinoh"     503998      78196      20610        110
 "cleveloh"     914808     147847     132799        206
 "columboh"     375901      46692      10960         61
 "dallastx"     434462      56958       8320         96
 "daytonoh"     243872      34151       7983         54
 "denverco"     415786      15059      22364         50
 "detroimi"    1849568     300506     276470        369
 "durhamnc"      71311      26095        513         14
 "eastchin"      54263      10050      10092         10
 "eaststil"      82295      27555       2643         13
 "evanstil"      73641       6994       6071         17
  "flintmi"     163143      13906      12702         41
 "fortwotx"     278778      36933       4149         48
   "garyin"     133911      39253      14960         27
 "greensnc"      74389      19109        744         16
 "hartfoct"     177397      12654      32527         41
 "houstotx"     596163     124766      17398         68
 "indianin"     427173      63867       8919        110
 "kalamami"      57704       2468       4145         12
 "kansasmo"     456622      55682      15836         99
 "longbeca"     250767       4267      15291         51
 "losangca"    1970358     171209     247054        362
 "louisvky"     369129      57657       4945         90
 "mckeespa"      51502       2660       6269         24
 "memphitn"     396000     147141       4511         90
  "miamifl"     249276      40262      26819         45
 "milwauwi"     637392      21772      63450        160
 "minneamn"     521718       6807      48862        121
 "mountvny"      71899       7850      11695         21
 "nashvitn"     174307      54696       1390         40
 "newhavct"     164443       9605      25940         28
 "neworlla"     570445     181775      14306        142
 "newrocny"      59725       7403       9661         13
 "newyorny"    7891957     747608    1784206       2358
 "norfolva"     213513      62826       4408         52
 "oaklanca"     384575      47562      38192         72
 "oklahook"     243504      21006       2736         68
  "omahane"     251117      16311      17304         62
 "passainj"      57702       2944      13967          8
 "patersnj"     139336       8270      27359         31
 "philadpa"    2071605     376041     232587        396
 "pittsbpa"     676806      82453      64983        194
 "portlaor"     373628       9529      34224         61
 "providri"     248674       8304      38879         37
 "richmova"     230310      72996       3696         61
 "rochesny"     332488       7590      49127         88
 "sacramca"     137572       4538      12306         32
 "sandieca"     334387      14904      23543         91
 "sanfraca"     775357      43502     120393        118
 "seattlwa"     467591      15666      55441         94
 "spokanwa"     161721       1242      12238         41
 "springma"     162399       6173      23537         26
 "stlouimo"     856796     153766      41819        128
 "stpaulmn"     311349       5665      24344         76
 "syracuny"     220583       4586      23495         61
 "tacomawa"     143673       3199      14264         35
 "toledooh"     303616      25026      19980         55
 "trentonj"     128009      14479      17638         24
  "uticany"     101531       1640      14467         29
 "washindc"     802178     280803      39497         96
 "wichitks"     168279       8082       2344         43
 "yonkerny"     152798       4955      25695         24