condition mean min max ZT0-3 464.25 464.25 464.25 ZT4-7 444.0 444.0 444.0 ZT8-11 482.04999999999995 482.04999999999995 482.04999999999995 ZT12-15 367.9 367.9 367.9 ZT16-19 414.25 414.25 414.25 ZT20-23 447.25 447.25 447.25