As several of our readers have noted (and unbeknownst to us), Polk numbers are generally broken down into three different categories. In order of sales significance, they are: retail, fleet and dealer/manufacturer. The data we posted in our original graphs last week were exclusively retail sales and did not include fleet or dealer/manufacturer numbers.
Now we have Polk's "total" registration numbers (for gross vehicle weight rating classes 1, 2 and 3), so we thought you might like to look at some of the same graphs with more complete sales numbers. It's worth noting that not much has changed except for the exact total, but it is interesting how many truck sales — and what segments they're in — are designated "fleet" in a given year.