In the 1970s, approximately __________ of American couples reported that they cohabitated before getting married; in the year 2,000, approximately __________ reported that they had cohabitated before getting married.

I searched Google under the key words "Cohabiting percentages" to get these possible sources:

http://www.google.com/search?client=safari&rls=en&q=Cohabiting+percentages&ie=UTF-8&oe=UTF-8

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

To find the answers to your question, we can look up the relevant statistics from reputable sources. Here's how you can go about finding this information:

1. Start by searching for reputable sources that provide data on cohabitation trends in the United States over the years. Government organizations, research institutions, and reputable news outlets are good places to start.

2. Use search terms like "cohabitation rates in the United States by decade," "statistics on cohabiting couples before marriage," or something similar.

3. Look for data or studies specifically from the 1970s and the year 2000 to get accurate information for those time periods.

4. Once you find a reliable source with the desired data, navigate to the relevant sections or search within the article or report for the specific information you are seeking.

By following these steps, you should be able to find the approximate percentages of American couples who cohabitated before marriage in the 1970s and the year 2000.