condition mean min max ZT0-3 1402.05 1402.05 1402.05 ZT4-7 1057.6 1057.6 1057.6 ZT8-11 1192.9499999999998 1192.9499999999998 1192.9499999999998 ZT12-15 1167.35 1167.35 1167.35 ZT16-19 1267.7 1267.7 1267.7 ZT20-23 1835.35 1835.35 1835.35