condition mean min max ZT0-3 65.1026 65.1026 65.1026 ZT4-7 118.033668 118.033668 118.033668 ZT8-11 150.91771699999998 150.91771699999998 150.91771699999998 ZT12-15 126.873097 126.873097 126.873097 ZT16-19 84.591551 84.591551 84.591551 ZT20-23 77.070449 77.070449 77.070449