condition mean min max ZT0-3 1739.25 1739.25 1739.25 ZT4-7 1342.5 1342.5 1342.5 ZT8-11 1158.9 1158.9 1158.9 ZT12-15 1302.3000000000002 1302.3000000000002 1302.3000000000002 ZT16-19 1483.3 1483.3 1483.3 ZT20-23 1737.8000000000002 1737.8000000000002 1737.8000000000002