condition mean min max ZT0-3 96.53996 96.53996 96.53996 ZT4-7 128.473279 128.473279 128.473279 ZT8-11 60.124286999999995 60.124286999999995 60.124286999999995 ZT12-15 78.5423765 78.5423765 78.5423765 ZT16-19 74.3256385 74.3256385 74.3256385 ZT20-23 54.7854655 54.7854655 54.7854655