In the USDA nutrition database (http://ndb.nal.usda.gov/) some foods like salmon, shrimp, meat and poultry are listed as raw and also cooked. When the calorie and nutrient content is measured in their lab for raw fish/meat/poultry is the product frozen or does the raw meat/fish/poultry mean that the calorie/ nutrient content was measures after it was thawed?

When calculating the calorie content of my food I am unsure to weigh it frozen or thaw it to get the most accurate nutritional info as listed in their database.

I apologize is this seems anal or OCD but I'm pretty strict with my calories.

Any info or clarification would be much appreciated.

There's a third one: fresh (never frozen).
I don't know. I would write to them.
Frozen might mean slightly heavier than thawed. Fresh might weigh the same as frozen. It would all depend on when they froze and how much liquid had been released, and if thawed, if they measured including the liquid or not.
Given the variations in calories anyway from one piece to the next of the same species, I suspect that the state of fresh/frozen/thawed is below the charting of significance.

Normally it is fresh ( not frozen or ever frozen) which would be closer to a thawed weight.

I disagree about thawed being closer to fresh. The juices freeze into crystals and leave the tissue. Ever compare a thawed turkey to a fresh one?
When thawed, the higher amount of juices might be discarded by the testers.