condition mean min max ZT0-3 1039.25 1039.25 1039.25 ZT4-7 1146.3 1146.3 1146.3 ZT8-11 1421.65 1421.65 1421.65 ZT12-15 1301.9 1301.9 1301.9 ZT16-19 1116.1 1116.1 1116.1 ZT20-23 1098.7 1098.7 1098.7