condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.058843 0.0 0.117686 12 h after light 0.0 0.0 0.0 4 h after dark 0.12608265 0.0637223 0.188443 8 h after dark 0.1565585 0.125912 0.187205 12 h after dark 0.0831735 0.06198 0.104367