condition mean min max ZT0-3 0.4049807635 0.303296873 0.5066646539999999 ZT4-7 0.397001771 0.2581467035 0.5358568385 ZT8-11 10.705554524250001 4.565039513 16.8460695355 ZT12-15 13.12054226375 10.0805843155 16.160500212000002 ZT16-19 8.542824972750001 6.7226375245000005 10.363012421 ZT20-23 26.5637907125 17.515388440000002 35.612192985