condition mean min max ZT0-3 62.47555 62.47555 62.47555 ZT4-7 47.269 47.269 47.269 ZT8-11 46.57965 46.57965 46.57965 ZT12-15 33.11155 33.11155 33.11155 ZT16-19 37.96255 37.96255 37.96255 ZT20-23 54.010400000000004 54.010400000000004 54.010400000000004