2 years old now in 2024 - what year born?

Today, 14 October 2024 if a person is 2 years old now, what year was he born? See below:

If 2 years old, year of birth is:
2021 or 2022*

*It depends on whether he was born before or after 1 January 2022.

If now 2 years and his year of birth 2021 if he was born after 14 October 2021 until 31 december 2021 inclusively, and his year of birth is 2022 if he was born from 1 January 2022 to 14 October 2022.

Other examples:

If now 11 years, year of birth 2012 or 2013
If now 12 years, year of birth 2011 or 2012
If now 29 years, year of birth 1994 or 1995
If now 47 years, year of birth 1976 or 1977

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