condition mean min max ZT0-3 0.122662 0.0 0.245324 ZT4-7 0.0 0.0 0.0 ZT8-11 0.08742499999999999 0.08742499999999999 0.08742499999999999 ZT12-15 0.0 0.0 0.0 ZT16-19 0.10154200000000001 0.10154200000000001 0.10154200000000001 ZT20-23 0.0 0.0 0.0