condition mean min max ZT0-3 8885.2 8885.2 8885.2 ZT4-7 8620.7 8620.7 8620.7 ZT8-11 9960.95 9960.95 9960.95 ZT12-15 12479.5 12479.5 12479.5 ZT16-19 10577.4 10577.4 10577.4 ZT20-23 8852.0 8852.0 8852.0