condition mean min max ZT0-3 0.016056116666666665 0.0 0.04816835 ZT4-7 0.0459929 0.0459929 0.0459929 ZT8-11 0.02413625 0.02413625 0.02413625 ZT12-15 0.0483055 0.0 0.096611 ZT16-19 0.02254835 0.02254835 0.02254835 ZT20-23 0.1017875 0.1017875 0.1017875