The principle around this chart is that by glancing at the queen, you not only confirm if she is your original queen but also how old she is.
Sometimes queens can live past 5 years, but it is rare.
Therefore, the colors on the chart rotate every 5 years.
The colors are White, Yellow, Red, Green, and Blue. The rules are as follows:
Years ending in 1 and 6 – White
Years ending in 2 and 7 – Yellow
Years ending in 3 and 8 – Red
Years ending in 4 and 9 – Green
Years ending in 5 and 0 – Blue