condition mean min max ZT0-3 192.5 192.5 192.5 ZT4-7 149.1 149.1 149.1 ZT8-11 123.1 123.1 123.1 ZT12-15 147.65 147.65 147.65 ZT16-19 152.6 152.6 152.6 ZT20-23 222.7 222.7 222.7