condition mean min max ZT0-3 196.32150000000001 196.32150000000001 196.32150000000001 ZT4-7 208.535 208.535 208.535 ZT8-11 222.3095 222.3095 222.3095 ZT12-15 186.7595 186.7595 186.7595 ZT16-19 228.39350000000002 228.39350000000002 228.39350000000002 ZT20-23 216.4765 216.4765 216.4765