In lieu of the killer tornado that hit Oklahoma city on May 20, 2013, Slate published a map of the most devastating tornadoes to hit the United States since 1950.
As seen in the map, the southwest is the region with the highest frequency of devastating tornadoes.
Source: Slate: Map of the Week: All Killer Tornadoes Since 1950
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According to an article published by Scientific American, based on data from the Center for Disease Control and Prevention (CDC), tobacco use decreased in the U.S. in 2010, comparing to 1995. There are still some states where the use of tobacco constitutes a severe problem. Such is the case of West Virginia and Oklahoma. The best state in terms of tobacco use is Utah, with the lowest levels nationwide.
According to Stateline.org, sales tax collections have been on the rise in the last six months for some states, Oklahoma and West Virginia among others. They are expected to grow even more during the months of November and December 2010. As can be seen in the graph below, sales tax collections have been on the rise except for the period between the fourth quarter 2008 and the first quarter 2010.
The second quarter 2010 shows an increase in sales tax collection of 9.4% with respect to the previous quarter.
Sales tax revenue is the second largest source of tax collections after individual income tax revenue for the state of Oklahoma as can be seen in the chart below.