condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.004157445 0.004157445 0.004157445 ZT8-11 0.0 0.0 0.0 ZT12-15 0.00588455 0.00588455 0.00588455 ZT16-19 0.005233000000000001 0.005233000000000001 0.005233000000000001 ZT20-23 0.025870933333333332 0.025870933333333332 0.025870933333333332