condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0299885 0.0299885 0.0299885 ZT8-11 0.0 0.0 0.0 ZT12-15 0.01467225 0.01467225 0.01467225 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0