Insurance is an industry. Even though it would be nice if the companies kept their rates the same all the time, the truth is that they need to make enough money to pay for all of the claims that their policyholders might make.

A company must adjust their rates in order to make money when they compare the amount they received in premiums to the amount they paid in claims at the end of the year.

https://youtu.be/Cj82xkFT3lU