condition mean min max ZT0-3 1011.6194999999999 984.2484999999999 1049.745 ZT4-7 961.3779999999999 961.3779999999999 961.3779999999999 ZT8-11 967.797 967.797 967.797 ZT12-15 1214.6575 1197.415 1231.9 ZT16-19 1475.97 1475.97 1475.97 ZT20-23 1241.565 1241.565 1241.565