17173 records out of a total of 19,048 MODS records have an entry in the mods:typeOfResource field, for a total of 90.2% fields with one of the following values. The total of all records is 174,167, of which MODS records account for almost 11%.
| cartographic | 142 |
| mixed material mixed material mixed material mixed material | 17 |
| still image | 12787 |
| text | 3968 |
| three dimensional object | 254 |