condition mean min max ZT0-3 74.4411 74.4411 74.4411 ZT4-7 49.1081 49.1081 49.1081 ZT8-11 28.7337 28.7337 28.7337 ZT12-15 37.9769 37.9769 37.9769 ZT16-19 62.6965 62.6965 62.6965 ZT20-23 89.56025 89.56025 89.56025