condition mean min max ZT0-3 1798.05 1798.05 1798.05 ZT4-7 2919.9 2919.9 2919.9 ZT8-11 2660.05 2660.05 2660.05 ZT12-15 1628.85 1628.85 1628.85 ZT16-19 1265.9499999999998 1265.9499999999998 1265.9499999999998 ZT20-23 1192.65 1192.65 1192.65