Up until 2000, gas prices have remained relatively stable over the years, relative to the Consumer Price Index. The main exception was a three year spike in the early 1980's. Since 2000, the price of gas has outraced the CPI.
yes
because of the econonmy
fallen
the factory has gotten bigger, prices have gone up and the population has raised.
They have made it easier to read and the prices change
The price of gold has increased abunch in the past ten years.
The economy of practically every country in the past ten years has been going down. The economy has affected the prices of everything in the world. Same goes for the prices of Greyhound tickets. The prices have increased without fail over the past 10 years.
Discount Tire sells tires and other products and services at discount prices. They are located in the United States only. Discount Tire has been running for over fifty years.
yes it has changed over many years
Well, yes. Gasoline prices tend to change almost on a weekly basis.
Because people's interest has changed over the years.
Wave rock has changed over the years because it has changed colour