condition mean min max ZT0-3 5291.8 5291.8 5291.8 ZT4-7 3803.5 3803.5 3803.5 ZT8-11 3252.15 3252.15 3252.15 ZT12-15 1099.05 1099.05 1099.05 ZT16-19 637.55 637.55 637.55 ZT20-23 1782.25 1782.25 1782.25