condition mean min max ZT0-3 2229.8 2229.8 2229.8 ZT4-7 2786.5 2786.5 2786.5 ZT8-11 2398.8 2398.8 2398.8 ZT12-15 1547.6 1547.6 1547.6 ZT16-19 1424.7 1424.7 1424.7 ZT20-23 1772.0 1772.0 1772.0