Rigid PCB shipments were down 1.9 percent in May 2012 from May 2011, but bookings increased 12.0 percent year over year. Year to date, rigid PCB shipments decreased 5.0 percent and bookings increased 3.1 percent. Compared to the previous month, rigid PCB shipments were up 2.0 percent and rigid bookings gained 1.9 percent. The book-to-bill ratio for the North American rigid PCB industry in May 2012 remained above parity at 1.02. Flexible circuit shipments in May 2012 were down 10.0 percent, and bookings were down 1.1 percent compared to May 2011. Year to date, flexible circuit shipments decreased 9.1 percent and bookings decreased 2.1 percent. Compared to the previous month, flexible circuit shipments decreased 2.6 percent, but flex bookings were up 19.8 percent. The North American flexible circuit book-to-bill ratio remained high at 1.17.