condition mean min max ZT0-3 1208.9 1208.9 1208.9 ZT4-7 1181.1 1181.1 1181.1 ZT8-11 1183.9 1183.9 1183.9 ZT12-15 1267.45 1267.45 1267.45 ZT16-19 1345.35 1345.35 1345.35 ZT20-23 1338.5 1338.5 1338.5