English to Italian Law/Patents Business/Commerce (general) General Legal

Dear colleagues,
how can I translate the following expression "Series name"? It is present in a table in which there are following columns:

-Country Name
-"Series name" (in this column you find "ease of doing business in X country"; "time required to start a business" etc..)
- separated columns for years (from 2000 to 2005).

Thank you in advantage!