condition mean min max ZT0-3 732.13225 722.3475000000001 741.9169999999999 ZT4-7 691.6324999999999 691.6324999999999 691.6324999999999 ZT8-11 595.8155 595.8155 595.8155 ZT12-15 0 0 0 ZT16-19 832.7135000000001 832.7135000000001 832.7135000000001 ZT20-23 785.2429999999999 785.2429999999999 785.2429999999999