condition mean min max ZT0-3 0.0256185 0.0 0.051237 ZT4-7 0.104554 0.104554 0.104554 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0