{{Bar chart
| title = <!-- Title bolded above table; defaults to "List of cities by population" in {bar_chart}. -->
| class = <!-- Adds a class= parameter after the {| wikitable header -->
| table_width = <!-- Sets the overall table width in width_units (or em if width_units is not present) -->
| table_style = <!-- Additional parameters to be added to the table's style parameter -->
| bar_width = <!-- uses 30 by default. Must be an unformatted number -->
<!--| width_units = uses 'em' units by default -->
| label_type = <!-- Title for the label column; defaults to "City". -->
| label1 = <!-- Row 1 label -->
| label2 = <!-- Row 2 label -->
...
| label30 = <!-- Row 30 label -->
| data_type = <!-- Title for column 1 data. In {{Bar chart}}, defaults to "Population". -->
| data_max = <!-- Upper bound on the values in column 1 data fields (uses data1 if not present) -->
| data1 = <!-- Row 1, Column 1 data -->
| comment1 = <!-- Row 1, Column 1 comment -->
| color1 = <!-- Row 1, Column 1 bar colour -->
| data2 = <!-- Row 2, Column 1 data -->
| comment2 = <!-- Row 2, Column 1 comment -->
| color2 = <!-- Row 2, Column 1 bar colour -->
...
| data30 = <!-- Row 30, Column 1 data. {{Bar chart 4x9}} only supports up to data9. -->
| comment30 = <!-- Row 30, Column 1 comment. {{Bar chart 4x9}} only supports up to comment9. -->
| color30 = <!-- Row 30, Column 1 bar colour -->
| col2_data_type= <!-- Title for column 2 data -->
| col2_data_max = <!-- Upper bound on the values in column 2 data fields (uses col2_data1 if not present) -->
| col2_data1 = <!-- Row 1, Column 2 data -->
| col2_comment1 = <!-- Row 1, Column 2 comment -->
| col2_data2 = <!-- Row 2, Column 2 data -->
| col2_comment2 = <!-- Row 2, Column 2 comment -->
...
| col2_data30 = <!-- Row 30, Column 2 data. {{Bar chart 4x9}} only supports up to col2_data9. -->
| col2_comment30= <!-- Row 30, Column 2 comment. {{Bar chart 4x9}} only supports up to col2_comment9. -->
}}
