condition mean min max ZT0-3 1201.5 1201.5 1201.5 ZT4-7 1514.7 1514.7 1514.7 ZT8-11 1538.05 1538.05 1538.05 ZT12-15 1172.2 1172.2 1172.2 ZT16-19 1217.4 1217.4 1217.4 ZT20-23 1348.4 1348.4 1348.4