condition mean min max ZT0-3 430.4 430.4 430.4 ZT4-7 282.3 282.3 282.3 ZT8-11 325.15 325.15 325.15 ZT12-15 431.5 431.5 431.5 ZT16-19 503.0 503.0 503.0 ZT20-23 455.9 455.9 455.9