Predict PS4 Sales Every Year Going Forward

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Dark_Lord_2008 said:
2017: 20 million, 2018: 18 million, 2019: 16 million, 2020: 15 million, 2021: 12 million, 2022: 8 million, 2023: 4 million. 2024 to discontinued: 4 million.
I project 150 million ltd sales for the PS4.

It would be seriously impressive if it gets that close to the PS2.