| June 22, 2005 |
July 13, 2005 |
2-for-1 split in the form of a 100% stock dividend |
| June 23, 1997 |
July 11, 1997 |
2-for-1 split in the form of a 100% stock dividend |
| August 9, 1994 |
September 5, 1994 |
2-for-1 split in the form of a 100% stock dividend |
| June 28, 1976 |
July 23, 1976 |
3-for-2 split |
| June 4, 1964 |
July 3, 1964 |
2-for-1 split |
| August 21, 1959 |
September 11, 1959 |
3-for-1 split |
| April 20, 1955 |
May 10, 1955 |
2-for-1 split |
| July 20, 1954 |
August 10, 1954 |
4% stock dividend |
| July 20, 1953 |
August 10, 1953 |
4% stock dividend |
| May 17, 1949 |
May 26, 1949 |
2-for-1 split in the form of a 100% stock dividend |
| December 15, 1926 |
December 24, 1926 |
5-for-1 split |
| February 15, 1926 |
March 8, 1926 |
25% stock dividend |