condition mean min max ZT0-3 49.564745 49.564745 49.564745 ZT4-7 51.86422 51.86422 51.86422 ZT8-11 73.1567765 73.1567765 73.1567765 ZT12-15 72.833153 72.833153 72.833153 ZT16-19 107.6260245 107.6260245 107.6260245 ZT20-23 70.07685599999999 70.07685599999999 70.07685599999999