Nukin' Gnats Pest Control wants to offer a contract to its customers that would protect the property of their existing customers against termite infestation. Should termites invade a customer's home, Nukin' Gnats will pay for the repairs to the home provided the customer has maintained service with Nukin' Gnats. The corporation must develop an account with a value of $500,000. They will accumulate this account over three years, after which they will offer this new contract provision. How much must be deposited annually (rounded amount) to accumulate the needed funds if they can get 5% interest at their local bank?