condition mean min max ZT0-3 4291.2 4291.2 4291.2 ZT4-7 5746.3 5746.3 5746.3 ZT8-11 5615.25 5615.25 5615.25 ZT12-15 5891.25 5891.25 5891.25 ZT16-19 5054.65 5054.65 5054.65 ZT20-23 4555.65 4555.65 4555.65