condition mean min max ZT0-3 0.29898960599999996 0.067388727 0.530590485 ZT4-7 0.07387339650000001 0.0 0.14774679300000002 ZT8-11 0.054837291749999996 0.0 0.10967458349999999 ZT12-15 0.29209590375 0.2290962575 0.35509555 ZT16-19 0.2672929375 0.2461948055 0.2883910695 ZT20-23 0.12686141525 0.0 0.2537228305