condition mean min max ZT0-3 343.036 343.036 343.036 ZT4-7 319.092 319.092 319.092 ZT8-11 171.7115 171.7115 171.7115 ZT12-15 115.6695 115.6695 115.6695 ZT16-19 168.4035 168.4035 168.4035 ZT20-23 286.1705 286.1705 286.1705