I believe this is just OED sense 8 of secular:
”Econ. and Statistics. Of a fluctuation or trend: occurring or persisting over an unlimited period; not periodic or short-term.”
Leave a comment, which must be approved by the moderator before it will appear. Courtesy matters!
Email (mandatory):
Location (optional):
Your Web Site (optional):
Remember my personal information
Notify me, by email, of follow-up comments.