condition mean min max ZT0-3 0.0111504 0.0111504 0.0111504 ZT4-7 0.0129648 0.0129648 0.0129648 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0129289 0.0129289 0.0129289 ZT16-19 0.01146385 0.01146385 0.01146385 ZT20-23 0.0 0.0 0.0