condition mean min max ZT0-3 5.42694753675 2.513323351 8.3405717225 ZT4-7 17.522103102499997 17.3865597 17.657646505 ZT8-11 10.35929050375 8.362914957000001 12.3556660505 ZT12-15 228.23092760625 155.3011655125 301.1606897 ZT16-19 189.72582815 159.1847193 220.266937 ZT20-23 67.47744446499999 41.38265183 93.5722371