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_94 ( _ppp__ VARCHAR, d__billions_of_us$_ VARCHAR, expenditures_on_r INTEGER, country_region VARCHAR, year VARCHAR )

### Question ###
What is the lowest expenditures on R&D for Poland after 2011?

### Accurate SQL ###

SELECT MIN(expenditures_on_r) & d__billions_of_us$_, _ppp__ FROM table_name_94 WHERE country_region = "poland" AND year > 2011