condition mean min max ZT0-3 649.15 649.15 649.15 ZT4-7 621.0 621.0 621.0 ZT8-11 680.75 680.75 680.75 ZT12-15 678.1 678.1 678.1 ZT16-19 707.8 707.8 707.8 ZT20-23 804.95 804.95 804.95