condition mean min max ZT0-3 1571.1 1571.1 1571.1 ZT4-7 479.8 479.8 479.8 ZT8-11 476.75 476.75 476.75 ZT12-15 586.75 586.75 586.75 ZT16-19 1302.45 1302.45 1302.45 ZT20-23 1777.35 1777.35 1777.35