condition mean min max ZT0-3 1813.25 1813.25 1813.25 ZT4-7 1882.8 1882.8 1882.8 ZT8-11 1776.9 1776.9 1776.9 ZT12-15 1701.0 1701.0 1701.0 ZT16-19 1667.65 1667.65 1667.65 ZT20-23 1639.0 1639.0 1639.0