condition mean min max ZT0-3 0.21168433333333334 0.101523 0.42443200000000003 ZT4-7 0.20231149999999998 0.20231149999999998 0.20231149999999998 ZT8-11 0.0 0.0 0.0 ZT12-15 0.42588899999999996 0.407136 0.444642 ZT16-19 0.0974035 0.0974035 0.0974035 ZT20-23 0.3338365 0.3338365 0.3338365