Table 1 Fuel types and corresponding caloric value by year.

Fuel types of this study (i)

Fuels in Japan Prefecture Energy Statistics

Unit

Year (t)

J_i

C_i

\(\frac{{\bf{1}}{{\bf{0}}}^{{\bf{12}}}\,{\boldsymbol{J}}{\boldsymbol{o}}{\boldsymbol{u}}{\boldsymbol{l}}{\boldsymbol{e}}}{{\bf{M}}{\bf{e}}{\bf{a}}{\bf{s}}{\bf{u}}{\bf{r}}{\bf{i}}{\bf{n}}{\bf{g}}\,{\bf{U}}{\bf{n}}{\bf{i}}{\bf{t}}}\)

\(\frac{{\boldsymbol{t}}{\boldsymbol{o}}{\boldsymbol{n}}\,{\boldsymbol{o}}{\boldsymbol{f}}\,{\boldsymbol{c}}{\boldsymbol{a}}{\boldsymbol{r}}{\boldsymbol{b}}{\boldsymbol{o}}{\boldsymbol{n}}}{{\bf{1}}{{\bf{0}}}^{{\bf{12}}}\,{\boldsymbol{J}}{\boldsymbol{o}}{\boldsymbol{u}}{\boldsymbol{l}}{\boldsymbol{e}}}\)