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 0.0 0.0 0.0 12 h after light 0.0311988 0.0 0.0935964 3 h after dark 0.0902737 0.0 0.192294 6 h after dark 0.03300673333333334 0.0 0.0990202 9 h after dark 0.0697135 0.0 0.126042 12 h after dark 0.03406933333333333 0.0 0.102208