condition mean min max ZT0-3 582.8 582.8 582.8 ZT4-7 410.3 410.3 410.3 ZT8-11 365.0 365.0 365.0 ZT12-15 410.15000000000003 410.15000000000003 410.15000000000003 ZT16-19 508.55 508.55 508.55 ZT20-23 559.25 559.25 559.25