Reading an old trade journal and found a surprising number about framing nails

I was going through some old Fine Homebuilding issues at the library and saw a stat from 1998. It said the average house back then used about 8,000 framing nails. I checked a current article, and for a similar size house today, it's closer to 12,000. That's a 50% jump. I guess it's because of more complex designs and stricter codes needing more connections. Makes you think about how much material we go through now. What's the biggest change in material use you've seen on your jobs?