Percentages at or above each achievement level for grade 12 U.S. history, by parental education level, from 2 questions and jurisdiction: 2010, 2006, 2001, and 1994
Year	Jurisdiction	Did not finish high school								Graduated high school								Some education after high school								Graduated college								Unknown
Year	Jurisdiction	below Basic	Standard Error	at or above Basic	Standard Error	at or above Proficient	Standard Error	at Advanced	Standard Error	below Basic	Standard Error	at or above Basic	Standard Error	at or above Proficient	Standard Error	at Advanced	Standard Error	below Basic	Standard Error	at or above Basic	Standard Error	at or above Proficient	Standard Error	at Advanced	Standard Error	below Basic	Standard Error	at or above Basic	Standard Error	at or above Proficient	Standard Error	at Advanced	Standard Error	below Basic	Standard Error	at or above Basic	Standard Error	at or above Proficient	Standard Error	at Advanced	Standard Error
† Not applicable. # Rounds to zero. NOTE: Detail may not sum to totals because of rounding. Some apparent differences between estimates may not be statistically significant. Analyze results with NAEP Data Explorer. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 1994, 2001, 2006, and 2010 U.S. History Assessments.
2010	National	80	(2.2)	20	(2.2)	3	(0.8)	#	(†)	70	(1.5)	30	(1.5)	6	(0.6)	#	(0.1)	59	(1.4)	41	(1.4)	7	(0.6)	#	(0.2)	42	(1.2)	58	(1.2)	18	(0.8)	2	(0.3)	84	(2.3)	16	(2.3)	2	(1.0)	#	(†)
2006	National	82	(1.7)	18	(1.7)	3	(0.8)	#	(†)	69	(1.4)	31	(1.4)	5	(0.7)	#	(0.2)	55	(1.4)	45	(1.4)	9	(0.8)	#	(0.2)	40	(1.4)	60	(1.4)	20	(1.1)	2	(0.3)	87	(2.9)	13	(2.9)	1	(†)	#	(†)
2001	National	81	(2.1)	19	(2.1)	2	(0.7)	#	(†)	75	(1.6)	25	(1.6)	4	(0.7)	#	(0.1)	61	(1.3)	39	(1.3)	8	(0.8)	1	(0.3)	42	(1.5)	58	(1.5)	18	(1.6)	2	(0.6)	84	(2.8)	16	(2.8)	2	(1.1)	#	(†)
2001¹	National	80	(2.1)	20	(2.1)	2	(0.7)	#	(†)	74	(1.3)	26	(1.3)	4	(0.8)	#	(0.1)	61	(1.3)	39	(1.3)	8	(0.7)	1	(0.2)	42	(1.5)	58	(1.5)	18	(1.5)	2	(0.8)	83	(3.3)	17	(3.3)	3	(1.5)	#	(†)
1994¹	National	85	(1.9)	15	(1.9)	1	(0.6)	#	(†)	71	(1.5)	29	(1.5)	4	(0.8)	#	(†)	58	(1.9)	42	(1.9)	8	(1.1)	1	(0.3)	44	(1.3)	56	(1.3)	17	(1.0)	1	(0.4)	88	(3.5)	12	(3.5)	1	(†)	#	(†)