condition mean min max ZT0-3 155.362 155.362 155.362 ZT4-7 106.581 106.581 106.581 ZT8-11 84.77605 84.77605 84.77605 ZT12-15 100.9505 100.9505 100.9505 ZT16-19 184.499 184.499 184.499 ZT20-23 179.7975 179.7975 179.7975