condition mean min max ZT0-3 0.047037999999999996 0.047037999999999996 0.047037999999999996 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.241398 0.241398 0.241398 ZT16-19 0.0 0.0 0.0 ZT20-23 0.134754 0.134754 0.134754