condition mean min max ZT0-3 1642.0 1642.0 1642.0 ZT4-7 1430.0 1430.0 1430.0 ZT8-11 1372.4 1372.4 1372.4 ZT12-15 1486.8 1486.8 1486.8 ZT16-19 1468.9 1468.9 1468.9 ZT20-23 1537.5 1537.5 1537.5