condition mean min max ZT0-3 1281.3 1281.3 1281.3 ZT4-7 1114.5 1114.5 1114.5 ZT8-11 1093.45 1093.45 1093.45 ZT12-15 1005.5 1005.5 1005.5 ZT16-19 1363.25 1363.25 1363.25 ZT20-23 1336.4 1336.4 1336.4