condition mean min max ZT0-3 31.2930535595 15.777234649 46.80887247 ZT4-7 41.37121568425 15.7982759085 66.94415545999999 ZT8-11 222.83350757249997 180.34333424499997 265.3236809 ZT12-15 105.485351945 47.63272311 163.33798078 ZT16-19 24.3522022725 19.97566559 28.728738955 ZT20-23 10.33428351425 8.285635493500001 12.382931535