This is the current, very incomplete list for the Weekly Baseball inserts.
I've been making the assumption that the numbers on the back of the cards in the 00's indicate how many cards were available in the issue. So for example the Daisuke Matsuzaka card from 2003 says 1-2/4 which I think means there were three other cards in that issue. I think the "1" indicated that it was the first issue in 2003 that had cards.
It's kind of odd that most of the cards in the 00's were original while almost all the cards in the teens have been promos.