condition mean min max ZT0-3 80.59084802 75.39458463999999 85.7871114 ZT4-7 87.603983865 84.78401265 90.42395508 ZT8-11 87.42628654333333 87.30364320666666 87.54892988 ZT12-15 95.45842176333335 88.57287091666667 102.34397261000001 ZT16-19 113.80293446666667 111.28047473333334 116.3253942 ZT20-23 104.72874729333333 101.96368730666667 107.49380728