condition mean min max ZT0-3 103.0547 103.0547 103.0547 ZT4-7 113.708 113.708 113.708 ZT8-11 64.57275 64.57275 64.57275 ZT12-15 11.26065 11.26065 11.26065 ZT16-19 41.5739 41.5739 41.5739 ZT20-23 34.963350000000005 34.963350000000005 34.963350000000005