condition mean min max ZT0-3 1837.45 1837.45 1837.45 ZT4-7 1579.4 1579.4 1579.4 ZT8-11 1277.25 1277.25 1277.25 ZT12-15 1315.3000000000002 1315.3000000000002 1315.3000000000002 ZT16-19 1546.3000000000002 1546.3000000000002 1546.3000000000002 ZT20-23 1776.1 1776.1 1776.1