condition mean min max ZT0-3 206.65 180.1825 226.992 ZT4-7 150.728 150.728 150.728 ZT8-11 113.695 113.695 113.695 ZT12-15 104.06095 96.0899 112.03200000000001 ZT16-19 125.786 125.786 125.786 ZT20-23 172.13 172.13 172.13