I have data that tracks several items over 5 years. I would like a plot for each transport over a 1 year period by month . But I would like to put all these 20 plots on only a couple pages. How do I do this with out a lot of where statements and data sets. SAS Data looks like this:

transport year mounth amount

car 1998 1 3 truck 1998 1 5 suv 1998 1 4 tractor 1998 1 8 car 1998 2 3 truck 1998 2 5 suv 1998 2 4 tractor 1998 2 8

car 1999 1 6 truck 1999 1 9 suv 1999 1 2 tractor 1999 1 6 car 1999 2 6 truck 1999 2 9 suv 1999 2 2 tractor 1999 2 6

car 2000 1 5 truck 2000 1 8 suv 2000 1 4 tractor 2000 1 8