It seems like "severe storms" have increased quite a bit, the other categories not so much. What does "severe storm" mean here? Doesn't seem to mean hurricanes or winter storms. So what gives? Is this just political patronage handed out under the cover of claiming a big storm knocked some trees down?
Ok so the source, https://www.ncei.noaa.gov/access/billions/time-series/US says,
"tornado outbreaks, high wind, hailstorms"
So most of this cost is roof damage. Which is an area rife with insurance fraud and getting worse.