condition mean min max 0 h after light 138.3885 137.45 139.327 4 h after light 37.4607 35.9651 38.9563 8 h after light 41.78875 39.3652 44.2123 4 h after dark 58.0668 56.6702 59.4634 8 h after dark 48.982299999999995 46.1113 51.8533 12 h after dark 71.9087 48.677 95.1404