Cause. Hives can also be classified by the purported causative agent. Many different substances in the environment may cause hives, including medications, food and physical agents. In perhaps more than 50% of people with chronic hives of unknown cause, it is due to an autoimmune reaction. Medications
The average American pays almost 30% of their income to taxes. Here's the breakdown. According to the IRS's preliminary data from the 2015 tax year (the returns you filed during 2016), there was a total of $1.454 trillion in income tax owed, which translates to an average effective federal income tax rate of about 13.5% per return.
Personal Tax Rates and Brackets for 2014. The U.S. federal government taxes personal income using a graduated scale. Tax rates began at 10 percent and gradually increased to 15 percent, then 25 percent, 28 percent, 33 percent, 35 percent and finally a top rate of 39.6 percent in 2014âthe same rates in effect as of 2016.