Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Name | Location | Format | Record Label | Release Date |
| --- | --- | --- | --- | --- |
| "I Feel Free" b/w "N.S.U." | UK | 7" 45rpm | Reaction 591 011 | December 1966 |
| "I Feel Free" b/w "N.S.U." | US | 7" 45rpm | Atco 6462 | December 1966 |
| "I Feel Free" b/w "N.S.U." | Europe | 7" 45rpm | Polydor 59 058 | 1966–1967 |
| "I Feel Free" b/w " White Room " | Germany | 7" 45rpm | RSO 2090 535 | 1970 |
| "I Feel Free" b/w " Badge " | UK | 7" 45rpm | Polydor POSP 812 | 1986 |
Question:
What is the release date when the location is Europe?
Answer:
1966–1967