The vector Lx1 is the age distribution vector immediately before the harvest. The total of all entries in Lx1 is 8.520, so the first entry2.514 is 29.5% of the total .This means that immediately before each harvest,29.5% of the population is in the youngest age class. Since 60.2% of this class is harvested, it follows that 17.8%(=60.2%of29.5%) of the entire sheep population is harvested each year. This can be compared with the uniform harvesting policy of Example 1,in which 15.0% of the sheep population is harvested each year.