condition mean min max ZT0-3 22.434649999999998 22.434649999999998 22.434649999999998 ZT4-7 11.9083 11.9083 11.9083 ZT8-11 18.9005 18.9005 18.9005 ZT12-15 35.30115 35.30115 35.30115 ZT16-19 33.0816 33.0816 33.0816 ZT20-23 32.8477 32.8477 32.8477