(The same survey showed that 33% of women cry at least once a week. Around 39% of men felt that crying should only be in response to tragedies, like the death of a loved one, while 27% said it's okay for a man to get emotional at any time. The remaining 29% say it's okay to for a guy to cry whenever, so long as it's not publicly.
Interestingly, 99% of women believe that real men cry. So, don't worry about it guys, it doesn't make you any less of a man in our eyes.)