condition mean min max ZT0-3 1072.5500000000002 1072.5500000000002 1072.5500000000002 ZT4-7 1285.1 1285.1 1285.1 ZT8-11 916.85 916.85 916.85 ZT12-15 1247.45 1247.45 1247.45 ZT16-19 1310.25 1310.25 1310.25 ZT20-23 1188.6 1188.6 1188.6