I am trying to make a world map that indicates Imports and Exports from my country to the rest of the world. I have successfully joined the table with the data and their matching values from the attribute table on the Worldmap Shapefile. However when trying to symbolize the (as can be seen in the attached file) in graduated colors the fields of the drop down list there is no data available, to show the different import and export values.
Is there something I may be doing wrong so that it is not allowing me to show the values I want to show on the map.
Please find the attached file of the issue aforementioned using images.
Thanks for your assistance.
Thanks jborgion for the reply regarding the Geocoding. I have start my project on geocoding.