Japan Tobacco Inc.'s domestic cigarette revenue for the month of May fell 12.4% this year compared to the same month a year ago, the company said June 15 in a preliminary report.

Revenue for the month fell to ¥42.8 billion from ¥48.9 billion with the company selling 7.1 billion cigarettes in May, down 12.8% from 8.2 billion in May 2017.

Total cigarette sales in Japan in the first four months of 2018 fell to 33.4 billion from 38.9 billion in the same period a year ago.

Revenue for January to May dropped 13.8% to ¥199.4 billion.

The Tokyo-based company said it holds a 61.5% market share in Japan as of May.

As of June 15, US$1 was equivalent to ¥110.51.