condition mean min max ZT0-3 791.5688888999999 791.5688888999999 791.5688888999999 ZT4-7 1029.3572221 1029.3572221 1029.3572221 ZT8-11 1120.3211113333334 1120.3211113333334 1120.3211113333334 ZT12-15 1035.9888887666666 1035.9888887666666 1035.9888887666666 ZT16-19 914.8911111 914.8911111 914.8911111 ZT20-23 932.9911109999999 932.9911109999999 932.9911109999999