Pennsylvania health insurers are asking for prices of their Obamacare plans to rise by an average of less than 9 percent in 2018 — but also warn rate increases could be more than quadruple that if President Donald Trump guts two key parts of the Affordable Care Act.

The requested rate hikes in the Keystone State are much lower than those being sought in several other states. The steep price increases requested elsewhere reflect projected fallout from potential actions by the Trump administration and Congress.

However, Pennsylvania's insurers were asked to price their Obamacare plans next year — at least for now — at levels that assume those actions won't happen.

The five insurers that sell individual health plans in Pennsylvania have asked Insurance Commissioner Teresa Miller to raise aggregate prices of those plans by 8.8 percent, according to Miller, who also noted that no insurer plans to leave the Obamacare market.

That rate is sharply lower than the average rate hike of 32.5 percent that Miller signed off on for this year in an effort to avoid big financial losses by health plans.

But Miller also said that if Congress, at the behest of Trump, repeals the Obamacare rule requiring most Americans to have some form of health insurance or pay a fine, insurers would seek a rate increase of 23.3 percent statewide next year.

The Republican bill known as the American Health Care Act, which is pending in Congress, seeks to repeal that so-called individual mandate.

And if the Trump administration stops reimbursing insurers for a critical Obamacare subsidy to low-income customers, insurers would ask for rate hikes of 20.3 percent, Miller said.

But "if both changes occurred, insurers estimate they would seek an increase of 36.3 percent," according to a statement released by Miller's office.