condition mean min max ZT0-3 8308.7 8308.7 8308.7 ZT4-7 10627.5 10627.5 10627.5 ZT8-11 10318.6 10318.6 10318.6 ZT12-15 9894.8 9894.8 9894.8 ZT16-19 8534.0 8534.0 8534.0 ZT20-23 7060.8 7060.8 7060.8