condition mean min max ZT0-3 981.8000000000001 981.8000000000001 981.8000000000001 ZT4-7 1004.0 1004.0 1004.0 ZT8-11 1054.65 1054.65 1054.65 ZT12-15 1063.15 1063.15 1063.15 ZT16-19 1117.4 1117.4 1117.4 ZT20-23 1003.5 1003.5 1003.5