Final answer:
The provided information does not specify the percentage of American college women who reported having had unprotected sex after consuming alcohol. However, it underlines the importance of comprehensive sexual education in potentially influencing such behaviors.
Step-by-step explanation:
The exact percentage of American college women who drank alcohol in the past year and reported having had unprotected sex is not provided in any of the reference information given. However, a closer understanding of student behavior and attitudes towards sexuality, particularly among college students, can be gleaned from the given data. For instance, while there's a broad recognition of the need for more effective sexual education to reduce unintended pregnancies and STIs, specific statistics on alcohol-related sexual behavior are missing. We do know from the National Survey of Family Growth that a significant portion of teens and young adults have progressive views on sex and sexuality, which could potentially influence behaviors such as drinking and unprotected sex. It is important to advocate for comprehensive sex education, as only a minority of schools cover the critical topics for sex education identified by the Centers for Disease Control and Prevention.