condition mean min max ZT0-3 395.79999999999995 395.79999999999995 395.79999999999995 ZT4-7 296.1 296.1 296.1 ZT8-11 388.45 388.45 388.45 ZT12-15 460.4 460.4 460.4 ZT16-19 527.8 527.8 527.8 ZT20-23 412.35 412.35 412.35