condition mean min max ZT0-3 0.218914725 0.19231385 0.2455156 ZT4-7 0.37602749999999996 0.37602749999999996 0.37602749999999996 ZT8-11 0.5073529999999999 0.5073529999999999 0.5073529999999999 ZT12-15 0 0 0 ZT16-19 1.02944 1.02944 1.02944 ZT20-23 0.6463285 0.6463285 0.6463285