That's what it seems to indicate but when I look at the totals it seems more like they are populations. For instance, I am interested in multi-family housing so I totaled all the values from each of the sub-variables with the exception of the detached house variable (i.e., 'B25024_002E', 'B25024_003E', 'B25024_004E', 'B25024_005E', 'B25024_006E', 'B25024_007E', 'B25024_008E', 'B25024_009E', 'B25024_010E', 'B25024_011E') and the totals are often 10-20% of the total population of the tract (see below). I don't think this could possibly be the total number of multifamily housing units. So, it seems that they are actually populations in each type of housing unit?
| GEOID | aprtmt_pop? | total_pop |
| 6029000101 | 2052 | 12972 |
| 6029000102 | 1688 | 7491 |
| 6029000200 | 1394 | 11403 |
| 6029000300 | 1274 | 5021 |
| 6029000400 | 1212 | 4412 |
| 6029000503 | 1144 | 6941 |
| 6029000504 | 1112 | 7114 |
| 6029000505 | 1026 | 5613 |
| 6029000506 | 1005 | 8000 |
| 6029000507 | 981 | 5373 |