condition mean min max ZT0-3 760.0999999999999 760.0999999999999 760.0999999999999 ZT4-7 3062.8 3062.8 3062.8 ZT8-11 2450.25 2450.25 2450.25 ZT12-15 1623.75 1623.75 1623.75 ZT16-19 1130.75 1130.75 1130.75 ZT20-23 1321.1 1321.1 1321.1