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Insider Index: This week by the numbers

Here are 10 numbers that illustrate some of this week's big, and small, Oregon news stories.

4,000,000: People in the U.S. who could be displaced by one meter of sea level rise, according to OPB.

4,191,000: Approximate population of Oregon in 2018, according to the U.S. Census Bureau.

192: Yurts in the Oregon State Parks system, according to The Oregonian.

1993: Year the state started installing the sturdy tents in its parks.

$795,000,000: Amount the expansion of Interstate 5 in the Rose Quarter could cost, according to an internal ODOT report obtained by Willamette Week.

500,000: Lights on display at the Umpqua Valley Festival of Lights, according to Travel Oregon.

1,400,000: Oregonians who will travel 50 miles or more for the holidays, according to AAA Oregon.

1,300,000: Among those travelers who will drive to get to their destinations.

$3.05: Average per-gallon price of gas in Oregon as of Dec. 23.

$2.99: Average per-gallon price of gas at Christmas in 2018.