Looks like that 2xxx number is disaster-related deaths? And the related to the nuclear power plant is 1368.
It is a bit confusing what that exactly entails. It seems to include people who committed suicide due to the evacuation, but surely their can't have been 1300 suicides. Is it people who are assumed to have died only because they weren't at home? How do you die due to an evacuation anyways?
None of this really seems explained, unless it really is 1300 suicides.
"As of year 2016" (obsolete), and "according to media analysis" (vague source).
The official number of "Disaster-related deaths" is directly tied to a "disaster condolence fund system" (families have to apply). This is discussed in: https://www.sciencedirect.com/science/article/pii/S266676572...
Also right now there is exactly 1 confirmed death from exposure to radiation from Fukushima, and a few dozen cases of cancer, radiation burns and injury. Pretty sure coal kills more directly and indirectly in any given month.