Do most people shower twice a day?

I was just watching an interview with Elle Fanning, and at one point, the interviewer asks her a question along the lines of, "Would you judge someone if they only shower in the morning vs only in the evening?" Both she and her co-star responded, "Yeah, we would judge someone who only showers in the morning."

I honestly don't think I know anyone who showers twice a day. However, I do know several people who shower in the morning. So, I guess my question is: Do most people shower twice a day?