condition mean min max ZT0-3 588.8455 565.9295 611.7615000000001 ZT4-7 408.132 408.132 408.132 ZT8-11 258.579 258.579 258.579 ZT12-15 0 0 0 ZT16-19 429.773 429.773 429.773 ZT20-23 504.002 504.002 504.002