condition mean min max ZT0-3 0.025801595500000003 0.025715209 0.025887982000000004 ZT4-7 0.0042758515 0.0 0.008551703 ZT8-11 0.106000236 0.0036225429999999998 0.208377929 ZT12-15 0.60870827375 0.4219909315 0.7954256160000001 ZT16-19 0.44120185624999997 0.33157005949999996 0.550833653 ZT20-23 0.10697821075000001 0.082219869 0.13173655250000002