North Dakota: Preliminary avg. 2021 premiums: +7.4% indy market, +5.0% sm. group
Here's North Dakota's 2021 individual & small group market rate change filings. Note that all of the small group filings are heavily redacted and the memos aren't available in the SERFF database for any of them, so I can't run a weighted average and had to go with the unweighted 5.0% increase.
For the individual market, Blue Cross Blue Shield's memo isn't available, so I had to plug in an estimate based on the average 2019 enrollment; I'm assuming it's fairly close to that this year as well. Weighted average on the indy market is a 7.4% increase.