condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.01771425 0.01771425 0.01771425 ZT16-19 0.01739125 0.01739125 0.01739125 ZT20-23 0.0 0.0 0.0