Number of articles in corpus and sample in Japanese | ||||||||||
| Total | Sample | Total | |||||||
2013-2014 | 2014-2015 | 2015-2016 | 2016-2017 | Total | 2013-2014 | 2014-2015 | 2015-2016 | 2016-2017 | ||
Newspaper Title | 650 | 731 | 589 | 843 | 2813 | 15 | 16 | 12 | 17 | 60 |
Asahi Shimbun5 | 275 | 400 | 266 | 344 | 1285 | 6 | 9 | 5 | 7 | 27 |
Nikkei newspaper6 | 239 | 198 | 145 | 315 | 897 | 5 | 3 | 3 | 7 | 18 |
2 Channel News Navigator7 | 166 | 133 | 178 | 184 | 661 | 4 | 2 | 4 | 4 | 14 |
| 650 | 731 | 589 | 843 | 2813 | 15 | 16 | 12 | 17 | 60 |