condition mean min max ZT0-3 1253.55 1253.55 1253.55 ZT4-7 1073.8 1073.8 1073.8 ZT8-11 1395.35 1395.35 1395.35 ZT12-15 1282.8000000000002 1282.8000000000002 1282.8000000000002 ZT16-19 1254.6 1254.6 1254.6 ZT20-23 1574.7 1574.7 1574.7