Here are some more recent numbers [1]:

Quarter 1 2018:

$414m total revenue

$260m subscription revenue (62% of total)

$154m non-subscription revenue (38% of total)

$46.7m digital advertising revenue (37% of total advertising revenue)

$126.2m total advertising revenue

If you cut digital advertising completely, not just for subscribers, you could make it up by increasing subscription price by around 10%, assuming 100% of subscribers would bear the new price.

The interesting statistic that we don't have is how much digital advertising revenue comes from paid vs unpaid readers.

[1] https://www.nytimes.com/2018/05/03/business/media/new-york-t...