<iframe src="https://exploratory.io/viz/kanaugust/2018-wek0Hwo6LI?embed=true" frameborder="0" width="100%" height="100%" > </iframe>
Data Source:
Japanese Government Statistics - e-Stat(https://www.e-stat.go.jp/stat-search/files?page=1&layout=datalist&toukei=00130002&tstat=000001032793&cycle=7&year=20180&month=0)