condition mean min max ZT0-3 0.016342025 0.0 0.03268405 ZT4-7 0.01649325 0.01649325 0.01649325 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.01649435 0.01649435 0.01649435 ZT20-23 0.0 0.0 0.0