condition mean min max ZT0-3 0.015212100000000001 0.015212100000000001 0.015212100000000001 ZT4-7 0.0192051 0.0192051 0.0192051 ZT8-11 0.0078407 0.0078407 0.0078407 ZT12-15 0.0541322 0.0541322 0.0541322 ZT16-19 0.02523065 0.02523065 0.02523065 ZT20-23 0.02501855 0.02501855 0.02501855