condition mean min max ZT0-3 125.9 125.9 125.9 ZT4-7 188.2 188.2 188.2 ZT8-11 207.89999999999998 207.89999999999998 207.89999999999998 ZT12-15 198.2 198.2 198.2 ZT16-19 134.5 134.5 134.5 ZT20-23 112.75 112.75 112.75