condition mean min max ZT0-3 147.5 147.5 147.5 ZT4-7 154.0 154.0 154.0 ZT8-11 127.80000000000001 127.80000000000001 127.80000000000001 ZT12-15 106.55000000000001 106.55000000000001 106.55000000000001 ZT16-19 132.0 132.0 132.0 ZT20-23 124.95 124.95 124.95