condition mean min max ZT0-3 12.924125 12.0783 13.76995 ZT4-7 16.983800000000002 16.983800000000002 16.983800000000002 ZT8-11 13.737549999999999 13.737549999999999 13.737549999999999 ZT12-15 0 0 0 ZT16-19 14.0383 14.0383 14.0383 ZT20-23 13.457550000000001 13.457550000000001 13.457550000000001