Input NHAMCS data, 2003-2009

Hello all,

I am wondering if anyone knows how to input NHAMCS data into SAS. For a project, I am to reproduce Table 1 from the following article:

I am having trouble inputting the dataset, and figuring out how to merge 2003-2009 data. The SAS input, format, and label codes are located here for all years:

Does anyone know what code or macros I would have to use? I really have no idea where to start. Thanks in advance!