condition mean min max ZT0-3 101.64999999999999 101.64999999999999 101.64999999999999 ZT4-7 232.6 232.6 232.6 ZT8-11 184.2 184.2 184.2 ZT12-15 181.2 181.2 181.2 ZT16-19 125.45 125.45 125.45 ZT20-23 108.69999999999999 108.69999999999999 108.69999999999999