Hi @SCox0007 ,
Congratulations on your two-year anniversary of your newsletter, that is very exciting! Often times, I have seen users offer incentives for taking a survey, so perhaps a raffle, contest or drawing offered to people who take the survey could be a fun way to celebrate your readers.
We don't have any collective analytics available for a two year span on the reporting page, but you could possibly create a segment of contacts to determine how many users have opened and clicked your emails in the last two years. Of course, you wouldn't want to provide any email address data to your contact list for privacy reasons, but you could give them some statistics regarding your open or click rate. Our Reporting data does go back 12 months, so you could definitely view the reporting for the last year that way as well.
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