condition mean min max ZT0-3 871.77302 871.77302 871.77302 ZT4-7 719.2916415 719.2916415 719.2916415 ZT8-11 477.6459755 477.6459755 477.6459755 ZT12-15 840.1344980000001 840.1344980000001 840.1344980000001 ZT16-19 547.68235 547.68235 547.68235 ZT20-23 559.4001195000001 559.4001195000001 559.4001195000001