condition mean min max ZT0-3 2570.1 2570.1 2570.1 ZT4-7 1555.1 1555.1 1555.1 ZT8-11 1654.6 1654.6 1654.6 ZT12-15 1908.95 1908.95 1908.95 ZT16-19 2358.0 2358.0 2358.0 ZT20-23 2362.95 2362.95 2362.95