condition mean min max 0 h after light 16.782600000000002 15.9941 17.5711 4 h after light 14.80695 14.2684 15.3455 8 h after light 20.471049999999998 18.7489 22.1932 4 h after dark 20.1231 19.4471 20.7991 8 h after dark 17.6446 17.1736 18.1156 12 h after dark 14.36285 14.0285 14.6972