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As of December 2018
Monthly battery export and import statistics
(source: Trade statistics released by the Ministry of Finance, Japan)

Unit: 1,000 (Quantity), million JPY (Amount)
  December 2018 Accumulated total from January to December 2018
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) 206,276  55,928  86%  105%  2,574,497  599,877  96%  112% 
Total of primary batteries 92,827  2,559  79%  82%  1,135,806  30,719  94%  95% 
Zinc carbon 82  81840%  2604%  110  6511%  137% 
Alkaline 5,535  107  111%  111%  45,439  935  95%  98% 
Silver oxide 47,037  653  76%  81%  514,514  6,943  88%  97% 
Lithium 40,006  1,583  80%  78%  574,532  20,584  99%  90% 
Zinc air 166  986%  543%  956  10  101%  97% 
Others 206  1%  108%  255  2,238  411%  172% 
Total of secondary batteries 113,449  53,369  93%  106%  1,438,690  569,158  98%  114% 
Lead-acid 196  1,453  104%  102%  2,159  17,050  99%  108% 
Nickel cadmium 1,171  207  35%  67%  16,661  1,952  71%  83% 
Nickel iron 2011%  222% 
Nickel metal-hydride 16,430  9,219  109%  106%  154,917  98,648  98%  119% 
Lithium ion 89,513  23,501  96%  92%  1,164,768  284,540  98%  99% 
Others 6,140  18,989  57%  135%  100,185  166,966  100%  150% 
Total of all batteries (imported) 153,411  20,301  100%  115%  1,586,920  200,616  109%  118% 
Total of primary batteries 142,967  2,285  99%  103%  1,481,964  24,172  109%  105% 
Zinc carbon 19,780  233  91%  100%  175,576  1,933  100%  97% 
Alkaline button 5,242  41  178%  179%  32,097  243  95%  97% 
Alkaline (exc. button type) 99,955  1,322  99%  103%  1,059,169  13,658  112%  107% 
Silver oxide 140  52%  97%  2,171  71  143%  151% 
Lithium 13,838  566  107%  104%  151,604  6,582  100%  106% 
Zinc air 3,988  98  65%  93%  61,046  1,082  105%  104% 
Others 24  20  94%  143%  301  604  105%  79% 
Total of secondary batteries 10,444  18,016  112%  116%  104,956  176,444  110%  120% 
Lead-acid 723  3,424  110%  101%  8,014  37,450  99%  103% 
Nickel cadmium 41  106  204%  67%  702  1,671  87%  83% 
Nickel iron 8%  16% 
Nickel metal-hydride 2,336  435  106%  98%  23,923  4,867  103%  98% 
Lithium ion 7,173  13,299  114%  128%  70,795  120,061  115%  133% 
Others 171  751  94%  65%  1,521  12,394  104%  93% 
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.