OK, should I say then, they are "fuller"? According to
this chart it was in November when the average block size passed the 900 kB size regularly. Since then the number of days/hours where we have more than 20.000 unconfirmed transactions in the waiting list is increasing.
Average blocksize is a pretty useless metric there, because it's highly distorted by miners that produce empty blocks (or nearly empty blocks)-- which are still as full as they're going to get. More useful is the n-th percentile size, which is ~1MB for most values of N... or the rolling maximum of the rolling minimum.