condition mean min max ZT0-3 29.92 29.92 29.92 ZT4-7 24.6439 24.6439 24.6439 ZT8-11 12.31425 12.31425 12.31425 ZT12-15 15.089 15.089 15.089 ZT16-19 14.148 14.148 14.148 ZT20-23 29.4095 29.4095 29.4095