Assume dividends over a 20-year period are $1500 if we consider time value of money, and the cash-surrender value at the end of the twentieth year is $4500. What assume that the annual premium for a $20,000 ordinary life insurance policy issued to a female, age 30, is $250 (paid at start of each year). Assume each year the interest is 5% per year . Accumulated dividends over a 20-year period are $1200 if we did not consider time value of money, and the cash-surrender value at the end of the twentieth year is $3750. Assume each year the interest is 5% per year. What is the average cost per $1000 per year using net payment cost index method?