condition mean min max ZT0-3 1162.8000000000002 1162.8000000000002 1162.8000000000002 ZT4-7 1359.9 1359.9 1359.9 ZT8-11 1374.7 1374.7 1374.7 ZT12-15 1292.25 1292.25 1292.25 ZT16-19 1034.5 1034.5 1034.5 ZT20-23 1104.25 1104.25 1104.25