Sunspot minimum - when?

One forecast says we are just past the minimum. Another one says it will be 2022 before we start the climb! The indications are that we have already passed the minimum, but this could just be a blip. The truth is it is usually some time after the minimum that we can be sure.

See https://www.swpc.noaa.gov/products/solar-cycle-progression
See http://www.solen.info/solar/