condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.02513655 0.02513655 0.02513655 ZT8-11 0.0 0.0 0.0 ZT12-15 0.069634 0.069634 0.069634 ZT16-19 0.0183442 0.0183442 0.0183442 ZT20-23 0.0 0.0 0.0