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:
| District | Incumbent | Party | First elected | Result | Candidates |
| --- | --- | --- | --- | --- | --- |
| Massachusetts 1 | Silvio Conte | Republican | 1958.0 | Re-elected | Silvio Conte (R) 71.1% Thomas R. Manning (D) 28.9% |
| Massachusetts 2 | Edward Boland | Democratic | 1952.0 | Re-elected | Edward Boland (D) Unopposed |
| Massachusetts 5 | Paul W. Cronin | Republican | 1972.0 | Lost re-election Democratic gain | Paul Tsongas (D) 60.6% Paul W. Cronin (R) 39.4% |
| Massachusetts 6 | Michael J. Harrington | Democratic | 1969.0 | Re-elected | Michael J. Harrington (D) Unopposed |
| Massachusetts 11 | James A. Burke | Democratic | 1958.0 | Re-elected | James A. Burke (D) Unopposed |
Question:
How many times was the candidates paul tsongas (d) 60.6% paul w. cronin (r) 39.4%?
Answer:
1.0