Shell Valley, North Dakota
Demographics
Table:
Historical population

Census	Pop.	Note	%±

1990	343	—
2000	395	15.2%
2010	1,197	203.0%
U.S. Decennial Census

Looking at the following table concerning 'Shell Valley, North Dakota' titled 'Demographics', compose one sentence describing only the highlighted cells and provide it inside the JSON object {"answer": "YOUR ANSWER"}.