condition mean min max ZT0-3 244.69799999999998 244.69799999999998 244.69799999999998 ZT4-7 273.387 273.387 273.387 ZT8-11 168.202 168.202 168.202 ZT12-15 113.5075 113.5075 113.5075 ZT16-19 129.1695 129.1695 129.1695 ZT20-23 173.4485 173.4485 173.4485