Bruno Fruscalzo decided to start a small production facility in Sydney to sell gelato to the local restaurants. His local milk supplier charges $0.50 per kg of milk plus a $20 delivery fee (the $20 fee is independent of the amount ordered). Bruno’s holding cost is $0.03 per kg per month. He needs 9000 kg of milk per month.

Suppose Bruno orders 7000 kg each time. How many orders does he place with his supplier each year?