condition mean min max ZT0-3 724.55 724.55 724.55 ZT4-7 679.1 679.1 679.1 ZT8-11 497.54999999999995 497.54999999999995 497.54999999999995 ZT12-15 513.15 513.15 513.15 ZT16-19 466.8 466.8 466.8 ZT20-23 536.85 536.85 536.85