Btw... looking at Mycomicshop, I count 316 issues of Aquaman titles, up to #9 of the current series.
Including three runs that ran for five or more years (one of which went nine years, went on hiatus and came back for one more year) and one run that just missed five years by a few issues.
Unless you're Batman, Superman or Wonder Woman, five years could be considered 'successful'.