A little more than 1% of tornadoes are rated F4 and F5 with F5 tornadoes being less than 0.1%
No, the majority of tornadoes in the US are not classified as F5. F5 tornadoes are extremely rare and account for only a small percentage of all tornadoes. Most tornadoes in the US are classified as weaker tornadoes, such as F0 to F2.
There have been many F5 tornadoes. See the link below for a list.
Oklahoma has had the most F4 and F5 tornadoes. Though it is tied with Texas, Iowa, and Alabama in terms of F5 tornadoes in the past 60 years.
There were no F5 or EF5 tornadoes in 2010.
There have been several dozen F5 tornadoes since record began in 1950. F5 the highest level on the Fujita scale which runs from F0 to F5 and rates tornadoes based on the severity of the damage they cause. A rating of F5 denotes an extremely violent tornado that rips houses clean of their foundations. F5 tornadoes are typically large and have been known to destroy entire towns. They are absolutely devastating. The majority of the most famous tornadoes were F5's, though a few F4 tornadoes have made it onto the list.
About .05% of all tornadoes are rated F5 or EF5. Or, in other terms, about 1 tornado in every 2000.
There have been dozens of F5 tornadoes, you will need to be more specific.
There have been estimated at least 109 F5 tornadoes in the U.S. Since the introduction of the Enhanced Fujita scale there have been 9 EF5 tornadoes, which is essentially equivalent to an F5. Note that this number should be taken with a grain of salt as it can be difficult to distinguish between F4 and F5 damage, especially in records that must be evaluated based on historical accounts.
There have been there have been 112 known F5 or EF5 tornadoes based on records since 1880. However, the number in older records is likely higher. It is very difficult to tell the difference between F4 and F5 tornadoes based on old records, and in the case of uncertainty an F4 rating is given.
There are six categories from EF0 to EF5.
There were 1692 tornadoes in the U.S. in 2008.