condition mean min max ZT0-3 916.45 916.45 916.45 ZT4-7 699.4 699.4 699.4 ZT8-11 685.9 685.9 685.9 ZT12-15 654.3499999999999 654.3499999999999 654.3499999999999 ZT16-19 811.0 811.0 811.0 ZT20-23 832.0999999999999 832.0999999999999 832.0999999999999