Hmm. Must've cut-and-paste the wrong number. Here's the correction:
3DS VRML(f) VRML(s) Inventor(b) Inv.gz
birdwlk3 80,186 166,037 124,337 94,628 23,838
cube 2,265 1,201 970 732 358
^^^
LightWave Imagine DXF Sense8 NFF Wavefront
birdwlk3 56,476 108,056 581,458 118,273 105,346
cube 436 676 2,312 639 557