condition mean min max ZT0-3 0.11252949999999999 0.0839515 0.1676055 ZT4-7 0.331588 0.331588 0.331588 ZT8-11 0.517962 0.517962 0.517962 ZT12-15 0.3377255 0.086276 0.589175 ZT16-19 0.7309985 0.7309985 0.7309985 ZT20-23 0.2794165 0.2794165 0.2794165