condition mean min max ZT0-3 95.924383 95.924383 95.924383 ZT4-7 87.2008145 87.2008145 87.2008145 ZT8-11 95.579341 95.579341 95.579341 ZT12-15 113.8543725 113.8543725 113.8543725 ZT16-19 94.94248 94.94248 94.94248 ZT20-23 104.0245205 104.0245205 104.0245205