condition mean min max ZT0-3 0.76540075 0.65928 0.8715215000000001 ZT4-7 0.67056 0.67056 0.67056 ZT8-11 1.3147315000000002 1.3147315000000002 1.3147315000000002 ZT12-15 0 0 0 ZT16-19 1.0797895 1.0797895 1.0797895 ZT20-23 1.737505 1.737505 1.737505