condition mean min max ZT0-3 3623.7 3623.7 3623.7 ZT4-7 3681.3 3681.3 3681.3 ZT8-11 2979.05 2979.05 2979.05 ZT12-15 3301.4 3301.4 3301.4 ZT16-19 4085.95 4085.95 4085.95 ZT20-23 3707.45 3707.45 3707.45