«We all rely on trust in our daily lives - that when sales tax is added, it actually applies and
equals the specified
amount; that the meter in a taxi shows the correct
amount provided
by law and correctly measures the actual distance; that when you order takeout, the price you see online
matches the
amount you pay in the restaurant.
In crude terms the actual fluctuations
amounted to about four or five peaks (depending on how you define them)
matched by an
equal number of dips — all the way to 1900.