condition mean min max 4 h after light 277.2589575 228.32994 326.187975 8 h after light 216.698287 180.8692 252.527374 12 h after light 206.99058150000002 187.045593 226.93557 4 h after dark 151.9970185 130.377365 173.616672 8 h after dark 134.5697625 96.001306 173.138219 12 h after dark 283.22813 283.22813 283.22813