Sum
of Total Visits on Selected Days
Volatility
Across Sample (Standard Deviation)
irs.gov
45,702,786
cdc.gov
49,420,611
sa.www4.irs.gov
25,006,821
tools.usps.com
90,784,392
nhc.noaa.gov
8,431,483
ncbi.nlm.nih.gov
50,662,317
pubmed.ncbi.nlm.nih.gov
15,542,449
airnow.gov
dol.gov
travel.state.gov