As noted in recent study, smart phone users average 14 queries per day to check on FB updates:

http://www.today.com/tech/smartphone-users-check-facebook-14-times-day-study-says-1C9125315

QUOTE: People with smartphones check their Facebook pages an average of 14 times each day. They scroll through news feeds while running errands, comment on friends’ posts while shopping or at the gym, post a photo of their food plate before dinner. This adds up to an average of about 32 minutes of Facebook time on their phone every day.