condition mean min max ZT0-3 478.25 478.25 478.25 ZT4-7 307.4 307.4 307.4 ZT8-11 241.35 241.35 241.35 ZT12-15 252.1 252.1 252.1 ZT16-19 587.45 587.45 587.45 ZT20-23 631.9000000000001 631.9000000000001 631.9000000000001