In 2004, the Swaziland government acknowledged for the first time that it suffered an AIDS crisis, with 38.8% of tested pregnant women infected with HIV (see AIDS in Africa). The then Prime Minister Themba Dlamini declared a humanitarian crisis due to the combined effect of drought, land degradation, increased poverty, and HIV/AIDS. According to the 2011 UNAIDS Report, Swaziland is close to achieving universal access to HIV/AIDS treatment, defined as 80% coverage or greater. Estimates of treatment coverage range from 70% to 80% of those infected. Life expectancy had fallen from 61 years in 2000 to 32 years in 2009. Tuberculosis is also a significant problem, with an 18% mortality rate. Many patients have a multi-drug resistant strain, and 83% are co-infected with HIV.

Answer this question, if possible (if impossible, reply "unanswerable"): What is the rate of mortality for those with tuberculosis in Swaziland?
18%