condition mean min max ZT0-3 9672.95 9672.95 9672.95 ZT4-7 13957.4 13957.4 13957.4 ZT8-11 13775.3 13775.3 13775.3 ZT12-15 10613.25 10613.25 10613.25 ZT16-19 9380.0 9380.0 9380.0 ZT20-23 10006.2 10006.2 10006.2