As the third open enrollment season for health insurance under the Affordable Care Act comes to a close on Sunday, a new poll reveals that many uninsured Americans still aren’t paying attention.

The poll by the Kaiser Family Foundation, released Thursday, found that the majority of the uninsured say they don’t know the deadline for getting coverage this year. Virtually no one knew that the fine for going without health insurance in 2016 has jumped to $695 per adult or 2.5% of household income — whichever is higher.