it is kind of amazing that Chile only started growing blueberries commercially in the late 80s, and that Argentina only followed in the early 90s.
I have found info online that indicates Argentina began commercially exporting by 1992, but I dont know if they were commonly available for purchase that early.
Where I live, in the NW, I have neighbors with blueberry bushes more than 50 years old, still commercially producing berries today.
A blueberry bush can live, and give fruit, for a long long time.
My, personal bushes are 20 years old now.