condition mean min max ZT0-3 0.5360535 0.5360535 0.5360535 ZT4-7 0.357398 0.357398 0.357398 ZT8-11 0.3555925 0.3555925 0.3555925 ZT12-15 0.729457 0.729457 0.729457 ZT16-19 1.4356550000000001 1.4356550000000001 1.4356550000000001 ZT20-23 0.6977315 0.6977315 0.6977315