condition mean min max ZT0-3 2007.9499999999998 2007.9499999999998 2007.9499999999998 ZT4-7 159.1 159.1 159.1 ZT8-11 1740.95 1740.95 1740.95 ZT12-15 1316.1 1316.1 1316.1 ZT16-19 2339.6000000000004 2339.6000000000004 2339.6000000000004 ZT20-23 1455.8 1455.8 1455.8