condition mean min max ZT0-3 1374.15 1374.15 1374.15 ZT4-7 902.8 902.8 902.8 ZT8-11 974.8 974.8 974.8 ZT12-15 990.8 990.8 990.8 ZT16-19 1373.3 1373.3 1373.3 ZT20-23 1613.6 1613.6 1613.6