condition mean min max ZT0-3 1114.95 1114.95 1114.95 ZT4-7 1934.2 1934.2 1934.2 ZT8-11 1630.05 1630.05 1630.05 ZT12-15 1471.4 1471.4 1471.4 ZT16-19 1240.4 1240.4 1240.4 ZT20-23 1039.5 1039.5 1039.5