condition mean min max ZT0-3 0.108034625 0.03119375 0.1848755 ZT4-7 0.18967584999999998 0.18967584999999998 0.18967584999999998 ZT8-11 0.12433785 0.12433785 0.12433785 ZT12-15 0 0 0 ZT16-19 0.307331 0.307331 0.307331 ZT20-23 0.061702850000000004 0.061702850000000004 0.061702850000000004