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.
Owners of very high end and very low end homes pay the highest property tax rates. Nationwide, the average effective property tax rate for all single family homes in 2014 was 1.29 percent, but the average effective property tax rate was 1.68 percent for homes valued $50,000 or below and 1.40 percent on homes valued between $50,000 and $100,000.