Percent of CGC Submissions Noted as Variants

The “rise of the variant” is clearly seen in the percent of CGC submissions which have any type of variant notification on the CGC label, separated by the date of the book.  The 1966 variant “spike” is related to Golden Record Reprints from Marvel, and the 1976-1977 “spike” is for 30-cent and 35-cent variants.  1990’s spike is primarily related to Spider-man #1 (1990).