condition mean min max ZT0-3 0.9103975 0.9103975 0.9103975 ZT4-7 0.5294105 0.5294105 0.5294105 ZT8-11 0.5097455 0.5097455 0.5097455 ZT12-15 0.461002 0.461002 0.461002 ZT16-19 0.378098 0.378098 0.378098 ZT20-23 0.5203815 0.5203815 0.5203815