condition mean min max ZT0-3 0.32755683333333335 0.0 0.9826705 ZT4-7 0.0 0.0 0.0 ZT8-11 0.7762315 0.7762315 0.7762315 ZT12-15 0.6980297499999999 0.215105 1.1809545 ZT16-19 0.738173 0.738173 0.738173 ZT20-23 1.2566205 1.2566205 1.2566205