condition mean min max ZT0-3 101.685519 101.685519 101.685519 ZT4-7 97.214679 97.214679 97.214679 ZT8-11 148.15529850000001 148.15529850000001 148.15529850000001 ZT12-15 151.961534 151.961534 151.961534 ZT16-19 118.03235699999999 118.03235699999999 118.03235699999999 ZT20-23 119.736357 119.736357 119.736357