condition mean min max ZT0-3 57.4743 56.798249999999996 58.15035 ZT4-7 55.51265 55.51265 55.51265 ZT8-11 49.98375 49.98375 49.98375 ZT12-15 0 0 0 ZT16-19 49.3523 49.3523 49.3523 ZT20-23 48.4754 48.4754 48.4754