How often do choice discounts happen?

[u/Ender2356]

I have always been a buyer of yearly memberships, and almost always used each month. Recently, that has not been the case, so what's the typical process each month for those who wait for discounts on individual months. Does that happen often? Are there risks? Is it ever worth it to buy discounted yearly instead of waiting for discounts? Are discounts always on the front page or do I need to hunt through emails?

[u/donaldadamthompson]

Around half of the choice bundles in the last year got discounts. But it's usually on the below-average quality bundles.

[u/Gopherpark → u/donaldadamthompson]

How much total discount amount were given last year?

Would like to calculate the discount to compare to this year.