condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.006950413999999999 0.0 0.013900827999999999 ZT8-11 0.0 0.0 0.0 ZT12-15 0.020846136833333334 0.0 0.04169227366666667 ZT16-19 0.0 0.0 0.0 ZT20-23 0.05527764466666667 0.035003416333333336 0.07555187299999999