condition mean min max ZT0-3 80.4813 80.4813 80.4813 ZT4-7 108.8675 108.8675 108.8675 ZT8-11 92.0295 92.0295 92.0295 ZT12-15 80.39885000000001 80.39885000000001 80.39885000000001 ZT16-19 56.519999999999996 56.519999999999996 56.519999999999996 ZT20-23 49.3086 49.3086 49.3086