You may select one or more counties, all counties or a class of county. You may also select statewide totals. Note: Five years of data may be selected at one time. You may select a specific variable or variables. Otherwise, all variables will be displayed. To select consecutive items, hold down the Shift key and click. To select non-consecutive items, hold down the Ctrl key and click. To begin a new query, scroll to the bottom of the screen and click "Clear Previous Selections."