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As of December 2016
Monthly battery export and import statistics
(source: Trade statistics released by the Ministry of Finance, Japan)

Unit: 1,000 (Quantity), million JPY (Amount)
  December 2016 Accumulated total from January to December 2016
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) 244,050  48,797  112%  108%  2,659,427  472,362  115%  104% 
Total of primary batteries 106,461  2,788  113%  103%  1,159,128  29,010  105%  95% 
Zinc carbon 67%  11%  19  2%  31% 
Alkaline 2,207  44  118%  74%  46,893  804  181%  119% 
Silver oxide 50,539  630  116%  111%  528,728  6,172  98%  87% 
Lithium 53,715  2,097  110%  108%  582,170  21,445  109%  100% 
Zinc air 0%  26%  974  12  120%  103% 
Others 15  168%  13%  361  557  88%  50% 
Total of secondary batteries 137,589  46,009  111%  108%  1,500,299  443,352  124%  104% 
Lead-acid 192  1,424  106%  116%  2,068  13,601  97%  101% 
Nickel cadmium 2,728  236  84%  76%  36,218  3,007  56%  51% 
Nickel iron 53%  34% 
Nickel metal-hydride 18,429  8,704  137%  123%  177,601  73,327  122%  112% 
Lithium ion 107,208  28,125  105%  105%  1,196,537  283,952  124%  115% 
Others 9,031  7,519  197%  107%  87,875  69,464  259%  74% 
Total of all batteries (imported) 135,386  16,046  97%  104%  1,427,942  155,737  100%  99% 
Total of primary batteries 127,202  2,212  97%  104%  1,335,872  21,515  100%  88% 
Zinc carbon 14,108  170  106%  97%  172,875  1,834  120%  91% 
Alkaline button 2,825  17  35,575  264 
Alkaline (exc. button type) 92,423  1,218  913,253  12,181 
Silver oxide 434  11  151%  133%  2,962  78  95%  84% 
Lithium 11,080  437  103%  109%  144,063  5,484  102%  88% 
Zinc air 6,325  117  132%  148%  66,980  1,105  121%  103% 
Others 242  152%  5727%  164  569  37%  91% 
Total of secondary batteries 8,184  13,834  94%  104%  92,070  134,222  99%  101% 
Lead-acid 707  3,172  103%  101%  7,608  32,705  99%  98% 
Nickel cadmium 46  182  84%  116%  1,026  1,741  85%  83% 
Nickel iron 760%  172% 
Nickel metal-hydride 2,049  433  83%  72%  23,436  5,080  102%  83% 
Lithium ion 5,288  8,785  109%  108%  57,167  81,478  113%  106% 
Others 94  1,262  15%  104%  2,832  13,216  28%  87% 
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.