There's a global graph on the same site
A site I have found very useful, and should be bookmarked by anybody interested in this sort of thing. End of plug.
The world chart is here.
Obviously, the total is heavily affected by record sea ice levels in the Southern Hemisphere. In the North, it's been below the mean and slowly dropping (until now) for several years.
I have no idea why it's up right now, or why it took such a nose dive just prior to this.