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 | Director | Worldwide Gross |
| --- | --- | --- | --- | --- |
| 1.0 | Independence Day | 20th Century Fox | Roland Emmerich | $817,400,891 |
| 2.0 | Twister | Warner Bros. / Universal Studios | Jan de Bont | $494,471,524 |
| 3.0 | Mission: Impossible | Paramount Pictures | Brian De Palma | $457,696,359 |
| 4.0 | The Rock | Hollywood Pictures | Michael Bay | $335,062,621 |
| 5.0 | The Hunchback of Notre Dame | Walt Disney Pictures | Kirk Wise , Gary Trousdale | $325,338,851 |
| 6.0 | 101 Dalmatians | Walt Disney Pictures / Great Oaks | Stephen Herek | $320,689,294 |
| 7.0 | Ransom | Touchstone Pictures / Image Entertainment | Ron Howard | $309,492,681 |
| 8.0 | The Nutty Professor | Universal Pictures | Tom Shadyac | $273,961,019 |
| 9.0 | Jerry Maguire | TriStar Pictures | Cameron Crowe | $273,552,592 |
| 10.0 | Eraser | Warner Bros. | Chuck Russell | $242,295,562 |
| 11.0 | The English Patient | Miramax Films | Anthony Minghella | $231,976,425 |
| 12.0 | Space Jam | Warner Bros. | Joe Pytka | $230,418,342 |
| 13.0 | The Birdcage | United Artists | Mike Nichols | $185,260,553 |
| 14.0 | The First Wives Club | Paramount Pictures | Hugh Wilson | $181,490,000 |
| 15.0 | Scream | Dimension Films | Wes Craven | $173,046,663 |
| 16.0 | Sleepers | Warner Bros. | Barry Levinson | $165,615,285 |
| 17.0 | Daylight | Universal Pictures | Rob Cohen | $159,212,469 |
| 18.0 | A Time to Kill | Warner Bros. | Joel Schumacher | $152,266,007 |
| 19.0 | Phenomenon | Buena Vista | Jon Turteltaub | $152,036,382 |
| 20.0 | Broken Arrow | 20th Century Fox | John Woo | $150,270,147 |
Question:
What is the average rank for the film directed by michael bay?
Answer:
4.0