condition mean min max ZT0-3 2536.45 2536.45 2536.45 ZT4-7 2636.0 2636.0 2636.0 ZT8-11 2201.15 2201.15 2201.15 ZT12-15 2293.6 2293.6 2293.6 ZT16-19 2358.35 2358.35 2358.35 ZT20-23 2498.2 2498.2 2498.2