2014
The 1969 calendar will repeat in the year 2045. The calendar repeats every 28 years.
Following the year 1997, the same calendar can be used in 2003, 2014 and 2025.
It repeated in 2003 then 2014 and the next time will be in 2025.
Never, unless the calendar is revised in such a way as to start below that number. It would still not repeat the year, just the number.
1988 calendar year will repeat in 2016.
1969 repeated in 1975, 1986, 1997, 2003 and will repeat again in 2014.
It doesn't repeat. Dead, gone, over.
2025, 2031, 2042, 2053, 2059, 2070, 2081, 2087 and 2098.
Up to the year 2014 the calendar for 1958 could once again be used for the years 1969, 1975, 1986, 1997, 2003 and 2014. It will next repeat in 2025.
The calendar year will be the same in 2040.
The 2000 calendar will repeat in 2028. This was a leap year and leap year calendars generally repeat every 28 years.