condition mean min max 4 h after light 17.792540000000002 14.288860000000001 22.84854 8 h after light 11.043308666666668 8.852146000000001 12.87245 12 h after light 13.75811 10.9099 16.15705 16 h after light 12.805607 9.918001 17.912020000000002 4 h after dark 19.25087 12.87054 23.366789999999998 8 h after dark 14.02878 10.26648 19.41571