How far do CGC average grades drop as comics get older?

The CGC Census reflects which comic books and how many copies of each have been submitted to CGC for grading and encapsulation for over 20 years. There are 204,534 individual comics with 5,210,195 copies CGC graded according to the June 30, 2020, CGC Census. With very few exceptions, newly-released comic books have always been sold without any certification or encapsulation, and billions of comic books printed through the decades still exist as those same “raw” comics in personal collections and dealer inventories. It is tempting to use the CGC Census as a view into the existing quantities and surviving conditions of comic books, but it is important to understand what the CGC Census can and cannot reveal. One question to ask is how far the CGC average grades drop as comics get older? Greg Holland compares CGC average universal grades with the ages and numbers of submissions for all comic books 1930s to present.

CGC universal average grades by decade

Read the full article from July 28, 2020, on here.