The dataset itself is available at the bottom of the page - "Download the data."
This page is a competition among data analysts/mathematicians to produce the most accurate predictive model, based on historical hospital admittance data, for finding people likely to enter a hospital in the next year - Giving preventative medicine a leg up by statistically determining the at-risk patients and decreasing the cost of care. Super cool!
The actual dataset can be accessed through this link.
Total tonnage and tonnage by traffic type (in short tons of 2000 pounds) of commodites carried on commercial waterways, where the origin and destination of the cargo movement was a location in the contigous 48 states, Alaska, Hawaii, Puerto Rico, the U. S