How much does a Christmas tree producer make a year?

Christmas trees cost different amounts each year, because the average price levels grow each year. At the moment Christmas trees are costing about £50, although are obviously rising. However, if you want to know how much money Christmas tree sellers spend on trees then it's different. They have to abide by the farm or Christmas tree grower's price and pay that amount, although there my be discounts on large orders, such as 50 for the price of 40 trees.