condition mean min max 0 h after light 0.4079315 0.0 0.815863 2 h after light 0.4254305 0.0 0.850861 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.432547 0.0 0.865094 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0