The number of bags used drop is significant, but I wonder how much the volume of plastic used has changed? This is an honest question. I am genuinely curious.

The number of bags used drop is significant, but I wonder how much the volume of plastic used has changed? This is an honest question. I am genuinely curious. Here in California, for example, the 10 cent bags you now pay for are much more robust than the cheap freebies of before, but also clearly use more material in their construction. I would estimate at least 5x-10x the mass per bag of the previous free ones. (I much prefer the newer system, FWIW. The stronger bags are much more useful around the home, too.)