condition mean min max ZT0-3 4740.2 4740.2 4740.2 ZT4-7 1275.9 1275.9 1275.9 ZT8-11 1603.35 1603.35 1603.35 ZT12-15 2583.45 2583.45 2583.45 ZT16-19 3214.65 3214.65 3214.65 ZT20-23 4906.15 4906.15 4906.15