condition mean min max ZT0-3 379.79999999999995 379.79999999999995 379.79999999999995 ZT4-7 341.0 341.0 341.0 ZT8-11 355.2 355.2 355.2 ZT12-15 432.29999999999995 432.29999999999995 432.29999999999995 ZT16-19 434.25 434.25 434.25 ZT20-23 404.25 404.25 404.25