condition mean min max 4 h after light 1160.2320565 1041.770518 1278.693595 8 h after light 557.8434070000001 468.816733 646.870081 12 h after light 687.465733 545.576336 829.35513 4 h after dark 333.03317400000003 329.680445 336.385903 8 h after dark 278.146255 206.655483 349.637027 12 h after dark 2085.869219 2085.869219 2085.869219