About 47 pages worth. See related link
There are 259 surfboard manufacturers in the U.S.A.
That is not enough information. You also need the make and model of firearm. Many manufacturers start with a serial number of 001 then count up as they make more. Other manufacturers choose their numbers other ways, but the numbers are almost always chosen by each manufacturer, so different models of firearm could have matching serial numbers.
about 900
In the US, hundreds of thousands.
There are about five major manufacturers available here, but I'd be surprised if any of their units are actually made in the US.
You will have to be a little more specific. Are you talking about companies traded on the stock exchange? Companies with more than or less than 25 employees?
The Sporting Arms and Ammunition Manufacturers Institute (SAAMI), sets voluntary national standards for ammunition and firearm design
In the US, it is estimated that roughly 1/3 of all households have at least 1 firearm. The rates vary in other countries.
Less than drunk driving deaths.
You stand a better chance of drowning in your bathtub
No, but you need to be the legal owner of that firearm.
There are many manufacturers of "tether balls" in the US and overseas.