List 77: US and Canada (excluding Québec) school or college grade

Value	Description	Notes	Issue number
P	Preschool	Age typically 0-4 years	1
K	Kindergarten	Age typically 5 years	1
1	First Grade	Age typically 6 years	1
2	Second Grade	Age typically 7 years	1
3	Third Grade	Age typically 8 years	1
4	Fourth Grade	Age typically 9 years	1
5	Fifth Grade	Age typically 10 years	1
6	Sixth Grade	Age typically 11 years	1
7	Seventh Grade	Age typically 12 years	1
8	Eighth Grade	Age typically 13 years	1
9	Ninth Grade	High School Freshman – age typically 14 years	1
10	Tenth Grade	High School Sophomore – age typically 15 years	1
11	Eleventh Grade	High School Junior – age typically 16 years	1
12	Twelfth Grade	High School Senior – age typically 17 years	1
13	College Freshman	Age typically 18 years	1
14	College Sophomore	Age typically 19 years	1
15	College Junior	Age typically 20 years	1
16	College Senior	Age typically 21 years	1
17	College Graduate Student	Age typically 22+ years	1