condition mean min max ZT0-3 0.0470385875 0.025955715 0.06812146 ZT4-7 0.07171129625 0.0453081655 0.09811442699999999 ZT8-11 0.087503597 0.038385519 0.136621675 ZT12-15 0.1671051925 0.12103452950000002 0.21317585549999998 ZT16-19 0.0373950505 0.022369597 0.052420504 ZT20-23 0.03770847225 0.033899338 0.0415176065