Try randomly selecting numbers between 1 and 7, 441 times (the number of years covering 1583 to 2023), you'll see that a range of 61-65 as the count for each nu

Try randomly selecting numbers between 1 and 7, 441 times (the number of years covering 1583 to 2023), you'll see that a range of 61-65 as the count for each number isn't unusual. Doing a naive hypothesis test (using prop.test in R for example), you get a P-value of 0.14 for a test of whether 61 out of 441 is significantly different to 441/7. No one would ever conclude a statistically-significant result based on such a high P-value.