condition mean min max ZT0-3 1303.0 1303.0 1303.0 ZT4-7 875.1 875.1 875.1 ZT8-11 857.3 857.3 857.3 ZT12-15 1086.2 1086.2 1086.2 ZT16-19 1232.45 1232.45 1232.45 ZT20-23 1216.5 1216.5 1216.5