Nikkei press summarized the 2015 beer market share in Japan. The data include low-malt alcohol and beer-like beverage (third category beer) in addition to normal beer.
The total sales of beer 2015 were 424 million cases (one case equals approximately 12.66 litre).
Figure: 2015 Beer Market Share in Japan
|Manufacturer||Market share (%)|
Source is Nikkei Sangyo Shimbun newspaper, the article on 2016 July 25th.