condition mean min max ZT0-3 80.8462 77.4438 84.2486 ZT4-7 65.44185 65.44185 65.44185 ZT8-11 132.499 132.499 132.499 ZT12-15 0 0 0 ZT16-19 146.9515 146.9515 146.9515 ZT20-23 84.6928 84.6928 84.6928