Sue purchased a $30$ acre farm in $2011$ with the intention of planting olive trees following advice from the australian olive association. In $2014$ she planted $20$ olive trees as a trial. These trees thrived and $2016$ she decided to grow olives commercially and planted another $200$ trees. In $2023$ the first olives were harvested and sold to retail outlets.

In what year did would she be considered to have commenced her olive production business?