condition mean min max ZT0-3 0.037288299999999996 0.03013295 0.04444365 ZT4-7 0.05986245 0.05986245 0.05986245 ZT8-11 0.0297854 0.0297854 0.0297854 ZT12-15 0 0 0 ZT16-19 0.0296849 0.0296849 0.0296849 ZT20-23 0.0148254 0.0148254 0.0148254