condition mean min max ZT0-3 287.15 287.15 287.15 ZT4-7 409.9 409.9 409.9 ZT8-11 492.4 492.4 492.4 ZT12-15 456.65 456.65 456.65 ZT16-19 401.25 401.25 401.25 ZT20-23 347.65 347.65 347.65