condition mean min max ZT0-3 277.65 277.65 277.65 ZT4-7 205.1 205.1 205.1 ZT8-11 179.2 179.2 179.2 ZT12-15 169.3 169.3 169.3 ZT16-19 127.1 127.1 127.1 ZT20-23 228.89999999999998 228.89999999999998 228.89999999999998