3 Point Molly and 21.318409 average units bet per session. What constitutes a new bet exactly?

I have limited programming skills and am trying to build a craps simulator that will simulate many sessions of various molly strategies. I thought the best way to make sure it was functioning properly was to check it against the Wizard's statistics. My statistics for the 3 Point Molly, like dice rolls per session, and average units won and lost per session match exactly, but my average units bet per session are high. Before I dive too far into the code, I want to make sure I'm defining "bet" properly.

One area that could cause issues, is if some bets are tracked as the original bet being left to ride as opposed to placing a new bet. I currently have everything programmed as a new bet being placed. For example, if you roll a 7 on the come out, you win 2x the bet, and then you place a new pass line bet for the next roll. Would there be any situations where that should instead be tracked as you win 1x the bet and the original bet is left on the table to ride and isn't counted as a new bet?