If your AquaFarm is in a spot that receives very direct sunlight, this is great for the plants, but not the tank water. In this situation, consider putting a back panel over the tank side to prevent sunlight from hitting the water.
However, they are not an especially good way to track the welfare of your business as a whole. For a more comprehensive understanding of your overall businesses performance, a trailing 12 month (TTM or T12M) figure is more useful.
The Cardinal Cycle of Twelve is symbolic of: Cycles, life, death & renewal. Twelve hours make a day and twelve months make a year. Twelve is a vital life cycle and regardless of the time of year, the time of day or the time of life you are presently confronting, you are a part of the cycle.