condition mean min max ZT0-3 1377.7 1377.7 1377.7 ZT4-7 4461.3 4461.3 4461.3 ZT8-11 5698.85 5698.85 5698.85 ZT12-15 4193.900000000001 4193.900000000001 4193.900000000001 ZT16-19 1586.7 1586.7 1586.7 ZT20-23 987.6 987.6 987.6