condition mean min max ZT0-3 70.1146 62.8976 77.33160000000001 ZT4-7 79.54635 79.54635 79.54635 ZT8-11 92.4993 92.4993 92.4993 ZT12-15 0 0 0 ZT16-19 128.1615 128.1615 128.1615 ZT20-23 103.965 103.965 103.965