condition mean min max ZT0-3 0.05839640725 0.0131618605 0.103630954 ZT4-7 0.07865153224999999 0.011542718 0.14576034649999997 ZT8-11 0.60562470975 0.4918725045 0.719376915 ZT12-15 0.476840987 0.405360619 0.548321355 ZT16-19 0.187310482 0.102750551 0.271870413 ZT20-23 0.8170023470000001 0.61897769 1.015027004