condition mean min max ZT0-3 550.05 550.05 550.05 ZT4-7 266.4 266.4 266.4 ZT8-11 201.25 201.25 201.25 ZT12-15 219.60000000000002 219.60000000000002 219.60000000000002 ZT16-19 323.85 323.85 323.85 ZT20-23 664.6 664.6 664.6