condition mean min max ZT0-3 1279.5 1279.5 1279.5 ZT4-7 1222.8 1222.8 1222.8 ZT8-11 1072.2 1072.2 1072.2 ZT12-15 1593.15 1593.15 1593.15 ZT16-19 1327.95 1327.95 1327.95 ZT20-23 1240.6 1240.6 1240.6