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

Unit: 1,000 (Quantity), million JPY (Amount)
  July 2017 Accumulated total from January to July 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) 224,063  43,070  95%  118%  1,559,166  295,271  105%  113% 
Total of primary batteries 109,149  2,805  103%  109%  706,255  18,373  105%  106% 
Zinc carbon 0%  0%  98%  41% 
Alkaline 4,839  85  100%  109%  23,142  480  88%  104% 
Silver oxide 53,732  638  116%  122%  335,871  4,043  114%  113% 
Lithium 50,577  1,902  93%  101%  346,540  13,172  99%  102% 
Zinc air 0%  0%  691  117%  114% 
Others 181  0%  251%  665  3%  189% 
Total of secondary batteries 114,914  40,265  88%  119%  852,912  276,898  106%  113% 
Lead-acid 172  1,322  101%  128%  1,214  8,747  104%  118% 
Nickel cadmium 1,932  196  57%  72%  12,635  1,261  60%  70% 
Nickel iron
Nickel metal-hydride 13,675  6,379  71%  133%  94,826  47,586  96%  125% 
Lithium ion 90,617  22,496  90%  102%  692,384  166,222  108%  106% 
Others 8,518  9,872  114%  175%  51,853  53,082  119%  135% 
Total of all batteries (imported) 117,245  13,402  102%  99%  806,873  91,306  101%  102% 
Total of primary batteries 109,421  1,804  102%  113%  753,268  12,668  101%  106% 
Zinc carbon 12,058  141  83%  116%  94,374  1,031  93%  99% 
Alkaline button 2,432  16  121%  110%  18,647  145  91%  85% 
Alkaline (exc. button type) 78,948  1,093  107%  114%  517,618  7,090  103%  104% 
Silver oxide 65  42%  61%  713  26  48%  65% 
Lithium 9,343  451  80%  109%  88,528  3,505  111%  115% 
Zinc air 6,574  97  122%  127%  33,256  618  84%  98% 
Others 3%  90%  132  253  89%  97% 
Total of secondary batteries 7,824  11,597  115%  97%  53,605  78,638  103%  102% 
Lead-acid 674  2,904  115%  118%  4,770  20,685  113%  113% 
Nickel cadmium 152  169  140%  120%  540  1,091  80%  108% 
Nickel iron 0%  0%  1830%  620% 
Nickel metal-hydride 1,880  386  112%  113%  13,460  2,887  97%  91% 
Lithium ion 5,048  6,980  120%  88%  34,221  46,399  109%  99% 
Others 69  1,158  29%  108%  607  7,570  28%  99% 
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.