Initial obamacare use data tells us, in economic terms, that providing insurance for the formerly uninsurable is meeting a long pent-up demand of lower income Alaskans for non-emergency room treatment and prevention. 
An initial period of high obamacare insurance use for a formerly unaddressed health care need is a to-be-expected impact. This has been true in all States - as are the to-be-anticipated increases in premium costs that follow these initial obamacare insurance use impacts.

After long-neglected individual health care problems have been medically addressed, the initial surge of treatment care will stabilize - as should the levels of rate increases. NO ONE'S health insurance rates have not been consistently increasing. Lobbyist success in Congress prevents competitive bidding for prescriptions; and the blocking of single-payer efforts both add a lot to everyone's costs of care.
The pooling expansions this bill calls for are but inefficient & ineffective single payer proxies.