condition mean min max ZT0-3 320.32225 307.552 333.0925 ZT4-7 296.726 296.726 296.726 ZT8-11 188.058 188.058 188.058 ZT12-15 0 0 0 ZT16-19 329.2575 329.2575 329.2575 ZT20-23 336.925 336.925 336.925