The 2000 was the first year that the GPS (Global Positioning System) equipment was utilized to record the location of the fossils.

The 2001 season was the first year that pre-printed numbered Field Labels were used with a more precise control of the field numbers used. The number on the Field Label becomes the permanent identification number for the specimen. The Field Labels are allocated in packs of 100 to the various quarries during the course of the excavation season and a careful record made of numbers assigned to track the fossils from the quarry to packed for transport.

Typically a few issued Field Labels are unused, but several additional numbers are utilized in the course of the bone restoration as small items are discovered as the larger bones are removed from the field jackets.

        averages do not include years prior to 2001 and years with zero bones

The numbers for the 2001 season and subsequent years are determined from the actual Field Labels assigned. Prior to this season, the numbers are taken from the bone catalog and likely undercount the actual fossils recovered in the given quarry.

The total number of specimens recovered is not necessarily the best measure of the success of an excavation season. Large or fragile or rare bones typically take much longer to excavate carefully than small bones, teeth, tendons, and bone fragments.

Also the lower threshold for size of tendons and bone fragments to be recorded and recovered has tended to increase as the research has progressed from year to year which reduces the actual counts of cataloged specimens.

A better measure might be the total weight of specimens recovered, but this information is not determined or recorded.

Another measure is the productivity for each participant.

    †  bones total includes years with no participant data, total ratio calculated only on years with both data

The participant days is the total number of days participants were on-site. It is not corrected for "days off"—Friday afternoons, field trip days, or Saturdays. The ratio is the number of fossils recovered per participant per day.

It should be kept in mind that this is still not necessarily the best measure of productivity. It does corrected for different number of participants in different years, but does not take into account "days off" due to other activities or inclement weather. It does not account for different thresholds for size of tendons and bone fragments to be recorded and recovered in different years.

A measure of the progress is the cumulative number of specimens catalogued by the end of each week's work.

+	weekly schedule was slightly different than subsequent years—the first week was a partial week and the season extended into a fifth week
†	weekly data not recorded

averages for the first three weeks do not include years prior to 2004 and years and weeks with zero bones recorded

The week data are the totals at the end of work on Friday except for Season which is Wednesday evening or Thursday morning when all the quarries are closed—this number is also the total for the season.

Of course, these numbers do not take into account the number of participants in each week, off-days that may vary from year to year, inclement weather, etc.

And finally, to compare to previous seasons, the year totals (since 2001) in order are: