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 | Vacator | Reason for change | Successor | Date successor\nseated |
| --- | --- | --- | --- | --- |
| Indiana's 8th | Disputed | House declared McCloskey the winner after auditors from the US General Accounting Office conducted a recount and Republican floor votes were rejected | Frank McCloskey (D) | May 1, 1985 |
| Louisiana's 8th | Gillis W. Long (D) | Died January 20, 1985 | Catherine S. Long (D) | March 30, 1985 |
| Texas's 1st | Sam B. Hall (D) | Resigned May 27, 1985 after being appointed judge for the US District Court for the Eastern District of Texas | Jim Chapman (D) | August 3, 1985 |
| New York's 6th | Joseph P. Addabbo (D) | Died April 10, 1986 | Alton R. Waldon, Jr. (D) | June 10, 1986 |
| Hawaii's 1st | Cecil Heftel (D) | Resigned July 11, 1986 | Neil Abercrombie (D) | September 20, 1986 |
| North Carolina's 10th | Jim Broyhill (R) | Resigned July 14, 1986 after being appointed to the US Senate | Cass Ballenger (R) | November 4, 1986 |
| Illinois's 4th | George M. O'Brien (R) | Died July 17, 1986 | Vacant | Not filled this term |
| Illinois's 14th | John E. Grotberg (R) | Died November 15, 1986 | Vacant | Not filled this term |
| North Carolina's 3rd | Charles O. Whitley (D) | Resigned December 31, 1986 | Vacant | Not filled this term |
Question:
how many of the changes happened before june of 1986?
Answer:
3 changes