condition mean min max ZT0-3 360.1 360.1 360.1 ZT4-7 412.5 412.5 412.5 ZT8-11 441.65 441.65 441.65 ZT12-15 476.79999999999995 476.79999999999995 476.79999999999995 ZT16-19 345.04999999999995 345.04999999999995 345.04999999999995 ZT20-23 417.4 417.4 417.4