The spread of AIDS: The table on the following page shows the cumulative number N = N (t) of AIDS cases in the United States that have been reported to the Centers for Disease Control and Prevention...

The spread of AIDS: The table on the following page shows the cumulative number N = N (t) of AIDS cases in the United States that have been reported to the Centers for Disease Control and Prevention by the end of the year given. (The source for these data, the U.S. Centers for Disease Control and Prevention in Atlanta, cautions that they are subject to retrospective change.)