California wildfires are huge this year, but not deadliest

With months still to go in California’s fire season, the state has already shattered records for the amount of land scorched in a single year — more than 4 million acres to date, with one blaze alone surpassing the 1 million acre mark. Five of the 10 largest wildfires in state history have occurred since August. Beyond their size, how do the scope and devastation of this year's fires compare to previous wildfire seasons in California?