Oddly specific

I've started seeing these signs in NYC subway cars:

The thing I don't understand about it is the use of "over". Had it said "over 1,400" that would make sense -- it's a round number. But "over 1,438" -- are there 1,439? According to two Google results [1] [2], New York State has exactly 1,438 family vineyards. Or at least, had in 2013. Perhaps NY State's Marketing Legal Team figured that there has been at least one additional family-owned vineyard founded since 2013, but didn't know precisely how many, so they went with "over".