condition mean min max ZT0-3 0.249461025 0.07940205 0.41952 ZT4-7 1.758576 1.758576 1.758576 ZT8-11 1.697515 1.697515 1.697515 ZT12-15 0 0 0 ZT16-19 1.0444307499999999 1.0444307499999999 1.0444307499999999 ZT20-23 0.255257 0.255257 0.255257