English: The picture is drawn by the author. Data source is from Bureau of Energy, MOEA. Its license is "In order to facilitate the public to better utilize the website information, all of Bureau of Energy, Ministry of Economic Affairs’ publicly posted information and materials that are protected under copyright provisions may be reauthorized for public use without cost in a non-exclusive manner. The users are not limited to time and by region to reproduce, adapt, edit, publicly transmit or utilize with other methods, and as well as to develop various products or services (herein known as derivations). This authorization will not be retracted hereafter, and the users do not have to acquire any written or other methods of authorization from the Administration. However, when using it, the user should state the source."