condition mean min max ZT0-3 179.60000000000002 179.60000000000002 179.60000000000002 ZT4-7 177.1 177.1 177.1 ZT8-11 125.8 125.8 125.8 ZT12-15 155.35000000000002 155.35000000000002 155.35000000000002 ZT16-19 190.65 190.65 190.65 ZT20-23 164.05 164.05 164.05