Yes they do, of every occurrence and case.
Many civil and criminal court records for Courts of Common Pleas and Magisterial District Courts are available online for free. Keep in mind that certain court records, such as juvenile court records may not be online. Visit the Pennsylvania Court Records related link to guide you to these resources, as well as other online Pennsylvania court resources, and a directory of Pennsylvania courts.
5 years in the UK. i don't know about USA
UK Records was created in 1972.
Argo Records - UK - ended in 1998.
Argo Records - UK - was created in 1951.
Fresh Records - UK - was created in 1979.
Fresh Records - UK - ended in 1982.
Cargo Records - UK - was created in 1992.
Court records are available online for some courts and for some types of cases. The answer will change as more courts add online records searching. The best place to look is on the court's website. See the related link below to find not only court websites, but information on which courts have online records, and how to access them.
Future Records - UK label - was created in 2009.
200,000
They have to keep records for 6 years after your last appointment