In others, one or more months can end up being counted twice.
Women tend to be counted twice at a higher rate than men.
Also, telling whether a bird has been counted twice can be difficult.
I can usually count on somebody inviting me to dinner once or twice a month.
During that period, each day at sea would count twice against the annual limit of 88 days.
About 4.4 million others - many of them college students and people who owned two homes - were counted twice.
A person who got a busy signal and called back was counted twice.
In 1981, however, research revealed that one game was counted twice for Cobb when he went 2-for-3.
To break the tie, the head of the jury ended up having his vote counted twice.
Red's vote for exiting counted twice because of a won challenge.