2025 year born – age now in 2024?

Other examples:

If 1946 year of birth - already 78 years or still 77 years.
If 1975 year of birth - already 49 years or still 48 years.
If 1988 year of birth - already 36 years or still 35 years.
If 2018 year of birth - already 6 years or still 5 years.