condition mean min max ZT0-3 2004.8000000000002 2004.8000000000002 2004.8000000000002 ZT4-7 1804.7 1804.7 1804.7 ZT8-11 1885.85 1885.85 1885.85 ZT12-15 1567.55 1567.55 1567.55 ZT16-19 1776.1 1776.1 1776.1 ZT20-23 1750.0 1750.0 1750.0