Do not draw vertical lines in a table. They also clutter. To guide a reader's eye and provide definition for the table, draw only a horizontal double-line between the title and the column headings and single horizontal lines below the column headings and at the bottom of the table, just as shown in the examples below. Be very neat. Keep cell entries lined up, align decimal points, keep horizontal lines the same length, etc.
Bivariate tables describe the relationship between two variables.
Number your tables with Arabic numerals. In parentheses after the title, report the data source or the set of cases used for the table unless you report that information in the text of your paper. Above the independent variable's values, enter the name of the independent variable, with a horizontal line below extending over the variable's values. Include a Total row that adds column percentages up as a guide to anyone reading the table. Report these totals in parentheses at the bottom of the independent variable columns.