The following is an excerpt from the Wall Street Journal futures page. It includes the futures prices of gold. The current cash (spot) price of gold is $403.25. Make your best estimates of the implied interest rates (from the arbitrage relationship) in the futures prices.

(You can assume zero carrying costs for gold.)

Contract expiring in

Trading at

1 month

$404.62

2 months

$406.11

3 months

$407.70

6 months

$412.51

12 months

$422.62