condition mean min max ZT0-3 477.20000000000005 477.20000000000005 477.20000000000005 ZT4-7 614.2 614.2 614.2 ZT8-11 332.2 332.2 332.2 ZT12-15 88.1 88.1 88.1 ZT16-19 149.5 149.5 149.5 ZT20-23 497.15 497.15 497.15