condition mean min max ZT0-3 912.75 912.75 912.75 ZT4-7 751.1 751.1 751.1 ZT8-11 879.0 879.0 879.0 ZT12-15 847.95 847.95 847.95 ZT16-19 1066.05 1066.05 1066.05 ZT20-23 1152.15 1152.15 1152.15