tod,n,mean,median,p90,half_spread_med
09:15-19,108,0.294,0.3,0.45,0.15
09:20-29,180,0.284,0.3,0.4,0.15
09:30-10:14,1350,0.257,0.25,0.4,0.125
10:15-13:59,11724,0.262,0.25,0.4,0.125
14:00-15:14,4470,0.242,0.25,0.4,0.125
15:15+,825,0.231,0.25,0.4,0.125