condition mean min max 0 h after light 47.5725 46.6106 48.5344 4 h after light 9.0982 8.50319 9.69321 8 h after light 9.29026 9.19317 9.38735 4 h after dark 12.263300000000001 11.6766 12.85 8 h after dark 15.722999999999999 13.9611 17.4849 12 h after dark 32.890150000000006 24.6809 41.0994