condition mean min max ZT0-3 10816.5 10816.5 10816.5 ZT4-7 9196.4 9196.4 9196.4 ZT8-11 9722.95 9722.95 9722.95 ZT12-15 10849.5 10849.5 10849.5 ZT16-19 10648.349999999999 10648.349999999999 10648.349999999999 ZT20-23 10631.85 10631.85 10631.85