condition mean min max ZT0-3 1193.1 1193.1 1193.1 ZT4-7 1195.7 1195.7 1195.7 ZT8-11 1184.65 1184.65 1184.65 ZT12-15 1389.6999999999998 1389.6999999999998 1389.6999999999998 ZT16-19 1367.6 1367.6 1367.6 ZT20-23 1141.15 1141.15 1141.15