condition mean min max ZT0-3 5.1101849999999995 5.1101849999999995 5.1101849999999995 ZT4-7 0.72939 0.72939 0.72939 ZT8-11 11.25976 11.25976 11.25976 ZT12-15 132.79725 132.79725 132.79725 ZT16-19 120.5885 120.5885 120.5885 ZT20-23 41.2013 41.2013 41.2013