condition mean min max ZT0-3 5.2304175 5.12441 5.336425 ZT4-7 4.02842 4.02842 4.02842 ZT8-11 8.241565 8.241565 8.241565 ZT12-15 0 0 0 ZT16-19 10.00051 10.00051 10.00051 ZT20-23 7.052155 7.052155 7.052155