I'm the same boat. I get about 3 a day (unless I wake up early and get a 4th). It has to do with your company. The big companies would be able to keep doing PCs 24/7 and you'd fall further down the list as a company. You just have to recruit some people in a different time zone than you so they can do the PCs that you cannot.
I have an issue with the tonnage in PCs. My 2 person company cannot pull 1,600t of fish in 2 hours unless I spend tons of gold bars in pulling nets and baiting. What is up with that?