condition mean min max ZT0-3 240.55 240.55 240.55 ZT4-7 296.6 296.6 296.6 ZT8-11 343.0 343.0 343.0 ZT12-15 305.7 305.7 305.7 ZT16-19 325.4 325.4 325.4 ZT20-23 266.6 266.6 266.6