condition mean min max ZT0-3 1274.35 1274.35 1274.35 ZT4-7 1593.1 1593.1 1593.1 ZT8-11 1235.75 1235.75 1235.75 ZT12-15 1133.45 1133.45 1133.45 ZT16-19 1147.7 1147.7 1147.7 ZT20-23 1218.6 1218.6 1218.6