Table 1.

Cumulative effective dose of internal and external radiation exposure

Dose (mSv)	Mar	Apr	May	Jun	Jul	Aug	Sep	Mar 2011 – Sep 2013
>250	6	0	0	0	0	0	0	6
>200 to ≦250	2	0	0	0	0	0	0	3
>150 to ≦200	17	0	0	0	0	0	0	26
>100 to ≦150	80	0	0	0	0	0	0	138
>75 to ≦100	108	0	0	1	0	0	0	345
>50 to ≦75	186	1	0	0	1	0	0	1045
>20 to ≦50	900	189	94	65	34	25	22	4569
>10 to ≦20	991	613	420	373	213	181	142	4167
>5 to ≦10	635	1474	967	836	634	539	435	3961
>1 to ≦5	584	1748	3130	3299	3345	3379	3198	7184
≦1	465	1831	2671	3004	3506	3358	3374	8369
Total	3974	5856	7282	7578	7733	7482	7171	29813
Maximum (mSv)	670.36	59.6	48.8	89.5	56.76	35.1	33.4	678.8
Average (mSv)	21.36	4.95	3.31	2.91	2.27	2.1	1.92	12.5