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:
| Rank | Title | Studio | Actors | Gross |
| --- | --- | --- | --- | --- |
| 1. | Star Wars* | Lucasfilm/20th Century Fox | Mark Hamill, Harrison Ford, Carrie Fisher, Peter Cushing, Alec Guinness, David Prowse, James Earl Jones, Anthony Daniels, Kenny Baker and Peter Mayhew | $460,998,007 |
| 2. | Smokey and the Bandit | Universal/Rastar | Burt Reynolds, Sally Field, Jackie Gleason, Jerry Reed and Mike Henry | $300,000,000 |
| 3. | Close Encounters of the Third Kind* | Columbia | Richard Dreyfuss, Teri Garr, Melinda Dillon and François Truffaut | $166,000,000 |
| 4. | Saturday Night Fever | Paramount | John Travolta and Karen Lynn Gorney | $139,486,124 |
| 5. | The Goodbye Girl | MGM/Warner Bros./Rastar | Richard Dreyfuss, Marsha Mason and Quinn Cummings | $102,000,000 |
| 6. | The Rescuers* | Disney | voices of Eva Gabor, Bob Newhart and Geraldine Page | $71,215,869 |
| 7. | Oh, God! | Warner Bros. | George Burns, John Denver and Teri Garr | $51,061,196 |
| 8. | A Bridge Too Far | United Artists | Dirk Bogarde, James Caan, Sean Connery, Elliott Gould, Laurence Olivier, Ryan O'Neal, Robert Redford, Liv Ullmann, Michael Caine, Edward Fox, Anthony Hopkins, Gene Hackman, Hardy Krüger and Maximilian Schell | $50,800,000 |
| 9. | The Deep | Columbia | Robert Shaw, Nick Nolte and Jacqueline Bisset | $50,681,884 |
| 10. | The Spy Who Loved Me | United Artists | Roger Moore, Barbara Bach, Curd Jürgens and Richard Kiel | $46,838,673 |
| 11. | Annie Hall | United Artists | Woody Allen and Diane Keaton | $38,251,425 |
| 12. | Semi-Tough | United Artists | Burt Reynolds, Kris Kristofferson and Jill Clayburgh | $37,187,139 |
| 13. | Pete's Dragon | Disney | Helen Reddy, Mickey Rooney and Shelley Winters | $36,000,000 |
| 14. | The Gauntlet | Warner Bros. | Clint Eastwood and Sondra Locke | $35,400,000 |
| 15. | The Turning Point | 20th Century Fox | Shirley MacLaine, Anne Bancroft, Tom Skerritt, Mikhail Baryshnikov and Leslie Browne | $33,600,000 |
| 16. | Heroes | Universal | Henry Winkler, Sally Field, and Harrison Ford | $33,500,000 |
| 17. | High Anxiety | 20th Century Fox | Mel Brooks, Madeline Kahn, Cloris Leachman, Harvey Korman, Ron Carey, Howard Morris and Dick Van Patten | $31,063,038 |
| 18. | Exorcist II: The Heretic | Warner Bros. | Linda Blair, Richard Burton, Louise Fletcher, Max von Sydow and James Earl Jones | $30,749,142 |
| 19. | Airport '77 | Universal | Jack Lemmon, Lee Grant and James Stewart | $30,000,000 |
| 20. | Herbie Goes to Monte Carlo | Disney | Dean Jones, Don Knotts and Julie Sommars | $29,000,000 |
| 21. | Slap Shot | Universal | Paul Newman and Strother Martin | $28,000,000 |
| 22. | The Other Side of Midnight | 20th Century Fox | Marie-France Pisier, John Beck and Susan Sarandon | $24,652,021 |
| 23. | Looking for Mr. Goodbar | Paramount | Diane Keaton, Tuesday Weld and Richard Gere | $22,512,655 |
| 24. | For the Love of Benji | Mulberry Square | Benjean, Patsy Garrett and Ed Nelson | $22,257,624 |
| 25. | The World's Greatest Lover | 20th Century Fox | Gene Wilder, Carol Kane and Dom DeLuise | $21,000,000 |
| 26. | Julia | 20th Century Fox | Jane Fonda, Vanessa Redgrave, Jason Robards, Hal Holbrook, Rosemary Murphy and Maximilian Schell | $20,714,400 |
Question:
of the 26 top-grossing films of 1977, how many were released by 20th century fox?
Answer:
6