It doesn't repeat. Dead, gone, over.
The 1997 calendar repeated in 2003 and 2014. It will next repeat in 2025.
Following the year 1997, the same calendar can be used in 2003, 2014 and 2025.
The 1969 calendar will repeat in the year 2045. The calendar repeats every 28 years.
It repeated in 2003 then 2014 and the next time will be in 2025.
The 2015 calendar will repeat in 2026.
The 2000 calendar will repeat in 2028.
The 2015 calendar will repeat in 2026.
1969 repeated in 1975, 1986, 1997, 2003 and will repeat again in 2014.
There are many different calendars, you need to specify which one you are referring to.
The calendar of 1998 repeated in 2009. The 1998 calendar will next repeat in 2015.
The 2004 calendar will repeat itself in 2032.
The 2009 calendar will repeat in 2015.
1988 calendar year will repeat in 2016.