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:
| Year | Title | Role | Notes |
| --- | --- | --- | --- |
| 1941 | The Maltese Falcon | Kasper Gutman | Nominated – Academy Award for Best Supporting Actor |
| 1941 | They Died with Their Boots On | Lt. Gen. Winfield Scott |  |
| 1942 | Across the Pacific | Dr. Lorenz |  |
| 1942 | Casablanca | Signor Ferrari |  |
| 1943 | Background to Danger | Col. Robinson |  |
| 1944 | Passage to Marseille | Major Duval |  |
| 1944 | Between Two Worlds | Rev. Tim Thompson |  |
| 1944 | The Mask of Dimitrios | Mr. Peters |  |
| 1944 | The Conspirators | Ricardo Quintanilla |  |
| 1944 | Hollywood Canteen | Himself |  |
| 1945 | Pillow to Post | Col. Michael Otley |  |
| 1945 | Conflict | Dr. Mark Hamilton |  |
| 1945 | Christmas in Connecticut | Alexander Yardley |  |
| 1946 | Three Strangers | Jerome K. Arbutny |  |
| 1946 | Devotion | William Makepeace Thackeray |  |
| 1946 | The Verdict | Supt. George Edward Grodman |  |
| 1947 | That Way with Women | James P. Alden |  |
| 1947 | The Hucksters | Evan Llewellyn Evans |  |
| 1948 | The Velvet Touch | Capt. Danbury |  |
| 1948 | Ruthless | Buck Mansfield |  |
| 1948 | The Woman in White | Count Alessandro Fosco |  |
| 1949 | Flamingo Road | Sheriff Titus Semple |  |
| 1949 | Malaya | The Dutchman |  |
Question:
how long did sydney greenstreet's acting career last?
Answer:
9 years