condition mean min max ZT0-3 100.7525 63.570499999999996 137.9345 ZT4-7 47.408 47.408 47.408 ZT8-11 244.04500000000002 244.04500000000002 244.04500000000002 ZT12-15 0 0 0 ZT16-19 41.327 41.327 41.327 ZT20-23 15.434899999999999 15.434899999999999 15.434899999999999