condition mean min max ZT0-3 279.1065 266.20799999999997 292.005 ZT4-7 209.853 209.853 209.853 ZT8-11 196.261 196.261 196.261 ZT12-15 0 0 0 ZT16-19 235.5255 235.5255 235.5255 ZT20-23 236.7715 236.7715 236.7715