condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.138837 0.0 0.25537 12 h after light 0.073823 0.0 0.221469 3 h after dark 0.11937199999999999 0.0 0.358116 6 h after dark 0.062387 0.0 0.187161 9 h after dark 0.2874023333333333 0.0 0.862207 12 h after dark 0.061674 0.0 0.185022