You are skirting the issue Pal.
"Kpaul's original title said, in full: "Helmets are law again in Louisiana (numbers prove benefit)", but we took out the latter part, and shame on AI programmer KPaul for posting it: of the 95,000 registered bikers in the state, a 0.046% difference is not statistically significant over a four year period, especially without comparing accident per mile, deaths per accident resulting from head injuries and deaths per mile ridden. Or, at the base level, even the number of registered bikers then Vs. now. "