Not much more is known, it's hard to set a year of when the runes ware inscribed but from the futhark "letters" used with some influenses of more modern letters such as the letter e which wasn't present in the futhark 16 letter version, so I would guess on around 1000 - 1200.
There are 2835 runestones from the viking age in Sweden and 479 in the rest of the world. There are several runestones where i live aswell, on is around 5 km away from here
Here's a map:
http://www.fotograaf.se/images/runstenarsverige.svg
Yeah i hate them too scott