condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.03334700175 0.0 0.0666940035 ZT12-15 1.399661653 0.9132891345 1.8860341715 ZT16-19 1.0253142130000001 0.7919512335000001 1.2586771925 ZT20-23 0.38695741575 0.18151181 0.5924030215