condition mean min max ZT0-3 907.45 907.45 907.45 ZT4-7 1041.6 1041.6 1041.6 ZT8-11 870.05 870.05 870.05 ZT12-15 901.5500000000001 901.5500000000001 901.5500000000001 ZT16-19 688.0 688.0 688.0 ZT20-23 816.3 816.3 816.3