In an anecdotal manner; by means of a recounted incident.(adverb)
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Use "anecdotally" in a sentence
"And I think what I'm told again anecdotally by women themselves and people who are advocates for patients is that they are still pretty much following the prior advice, that they're still getting mammograms under 50."
"And, again anecdotally, my own sense is that the academics on the right tend to be about as qualified, but not * strikingly* better than, the median."
"And then within your larger customers, what have you heard, just kind of anecdotally, from those guys in terms of their approach to marketing spending in 2010 relative to 2008?"