That's inflation. Inflation is when a certain form of currency starts to have less value over time. Mainly two things cause it: people's perception of value, and the economic principle of supply and demand.
Homefacts City Report. Emmaus is located in Lehigh County, PA. The population is 11,268, making Emmaus the 4th largest city in Lehigh County. There are 4 public schools in Emmaus with an average Homefacts rating of A-. The total crime rate for Emmaus is low, and there are 11 registered sex offenders residing in the city.
Hummelstown is a borough in Dauphin County, Pennsylvania, United States. The population was 4,520 as of 2013. It is part of the HarrisburgâCarlisle Metropolitan Statistical Area. Originally named Fredrickstown, the village was established in 1762. The borough's mayor is Bradley Miller.