More sex math

According to the New York Times, men are staying married longer than women among couples who married in the 1980's:

About 80 percent of first marriages that took place in the late 1950s lasted at least 15 years. Among people who married in the late 1980s for the first time, however, only 61 percent of the men and 57 percent of the women were married 15 years later.

Another math miracle. Okay, so it may not be a miracle: the statistics are limited to those who married "for the first time" in the 80's, and may be skewed if a significant number of couples included one partner who had been previously married. The data would therefore seem to imply that, during the 80's, divorced women partnered with men who had never married slightly more frequently than the converse.

Wait, why was I interested in this?