Knowledge may be power, but it may not be enough to drive down cancer rates, according to a new infographic from the Dana-Farber Cancer Institute.

Using data from the National Cancer Institute's (NCI) "Annual Report to the Nation on the Status of Cancer, 1975-2011," which analyzes the "rates for new cases, deaths and trends for the most common cancers in the U.S.," Dana-Farber listed the cancer cases on the decline — and those still on the rise. Colorectal and lung cancer rates have decreased among American men and women, as have colon and cervical cancer rates. Researchers suspect the fall is a result of improved detection techniques and vaccines for human papillomavirus (HPV), respectively.

But we still have some work to do when it comes to thyroid cancer and liver cancer, both of which have seen an increase in cases. This could have to do with "possible overdiagnosis may account for the increase in thyroid cancer cases," researchers said. As for liver cancer, they suggest it's linked to "increased rates of hepatitis C and alcohol abuse." For now, though, the exact causes remain unknown.

Check out the full ingographic below. You can also read the NCI's original report, here.