Actually, I was planning on holding off until I found more data.
At first glance though- it may be we are only at the beginning of our problems.
AZRedhawk is right about one thing: as our economy is currently built, we must have more money as population increases.
What particularly frightens me is what the 1970's look like. That was the most recent period of money mischief. (term borrowed from Friedman)
In the 70's we tried to manipulate the money supply to keep unemployment down. It worked, for a time. However, the economy adapts to inflationary tendencies and all you end up with is high inflation and high unemployment (Stagflation).
However, the early-mid 70's don't show this level of increase in the monetary base.
You can fool the market for a time (whether people are actually fooled by inflation is another matter for debate, the outcome is the same, though) but it will adjust.
Simple measures of the monetary base may not be the best indicator though.
As I recall, banks are holding more reserves currently. (This assertion needs substantiation, I don't have data on this)
IF the increase in the monetary base has been caused by massive infusion of reserves into banks, which they have not been lending, then we should not see any inflation as the money has to be used to create money supply.
In fact, banks reluctance to lend may be why we have not seen massive inflationary pressures.
If, however, these banks are induced to lend these massive reserves, we would be in for a massive price-level spike.
The graph is interesting and I'd like to see some more data before passing judgement.
It could be rather scary, though.