condition mean min max ZT0-3 0.9770891662500001 0.7048434490000001 1.2493348835 ZT4-7 2.61275831525 1.2651683055 3.960348325 ZT8-11 22.29155266125 12.053446662499999 32.52965866 ZT12-15 25.5026237125 21.391564535 29.61368289 ZT16-19 10.20211448825 8.1193554465 12.28487353 ZT20-23 5.762927834 5.7372301805 5.7886254875