Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_32 ( _ppp__ VARCHAR, d__billions_of_us$_ VARCHAR, expenditures_on_r INTEGER, country_region VARCHAR, year VARCHAR )

### Question ###
What is the average expenditures on R&D for Croatia after 2007?

### Accurate SQL ###

SELECT AVG(expenditures_on_r) & d__billions_of_us$_, _ppp__ FROM table_name_32 WHERE country_region = "croatia" AND year > 2007