condition mean min max ZT0-3 0.0192912 0.0192912 0.0192912 ZT4-7 0.0178993 0.0178993 0.0178993 ZT8-11 0.0 0.0 0.0 ZT12-15 0.00885575 0.00885575 0.00885575 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0