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As of December 2017
Monthly battery export and import statistics
(source: Trade statistics released by the Ministry of Finance, Japan)

Unit: 1,000 (Quantity), million JPY (Amount)
  December 2017 Accumulated total from January to December 2017
Quantity Amount y-o-y change in quantity y-o-y change in amount Quantity Amount y-o-y change in quantity y-o-y change in amount
Total of all batteries (exported) 240,138  53,235  98%  109%  2,681,374  533,674  101%  113% 
Total of primary batteries 117,547  3,123  110%  112%  1,213,212  32,200  105%  111% 
Zinc carbon 59%  65%  75%  28% 
Alkaline 4,970  97  225%  220%  47,712  957  102%  119% 
Silver oxide 62,280  802  123%  127%  586,467  7,138  111%  116% 
Lithium 50,255  2,032  94%  97%  578,022  22,788  99%  106% 
Zinc air 17  60000%  97%  947  11  97%  88% 
Others 24  191  5259%  1255%  62  1,300  17%  233% 
Total of secondary batteries 122,591  50,112  89%  109%  1,468,162  501,475  98%  113% 
Lead-acid 188  1,421  98%  100%  2,177  15,798  105%  116% 
Nickel cadmium 3,347  310  123%  131%  23,661  2,358  65%  78% 
Nickel iron 0%  0%  167%  270% 
Nickel metal-hydride 15,023  8,709  82%  100%  158,054  83,180  89%  113% 
Lithium ion 93,223  25,575  87%  91%  1,184,220  288,688  99%  102% 
Others 10,810  14,098  120%  187%  100,050  111,449  114%  160% 
Total of all batteries (imported) 153,834  17,721  114%  110%  1,458,182  170,116  102%  109% 
Total of primary batteries 144,496  2,212  114%  100%  1,362,779  23,050  102%  107% 
Zinc carbon 21,651  233  153%  137%  175,696  1,986  102%  108% 
Alkaline button 2,937  23  104%  139%  33,776  251  95%  95% 
Alkaline (exc. button type) 100,617  1,286  109%  106%  941,685  12,729  103%  104% 
Silver oxide 268  62%  45%  1,520  47  51%  60% 
Lithium 12,902  544  116%  124%  151,734  6,227  105%  114% 
Zinc air 6,096  106  96%  91%  58,083  1,044  87%  95% 
Others 25  14  346%  6%  286  765  174%  134% 
Total of secondary batteries 9,338  15,510  114%  112%  95,403  147,067  104%  110% 
Lead-acid 658  3,371  93%  106%  8,128  36,182  107%  111% 
Nickel cadmium 20  159  44%  87%  805  2,015  79%  116% 
Nickel iron 0%  0%  1188%  425% 
Nickel metal-hydride 2,212  444  108%  102%  23,328  4,972  100%  98% 
Lithium ion 6,266  10,386  118%  118%  61,668  90,585  109%  111% 
Others 182  1,150  195%  91%  1,466  13,307  52%  101% 
Total values may differ because they are rounded off to the nearest integer.

As of 2012, the "Others" category of imported secondary batteries has been separated into Nickel metal-hydride, Lithium ion and Others.
As of 2016, the "Alkaline" category of imported primary batteries has been separated into "Alkaline button" and "Alkaline (exc. button type)" categories.