Sweden
In Sweden, the twelfth grade does not officially exist, but its equivalent is the 3rd grade of secondary school, or gymnasium. This is not compulsory, as education is only compulsory until 9th grade.
Courses vary as students choose a specific programme in 1st grade of secondary school, or gymnasium. Examples of programmes are: Nature and science, Arts, Economics, Health and care, industry. There are 18 national programmes, where 12 of them will get the students ready for work, and 6 will prepare the students for more advanced studies.
Students graduate the same year they'll turn 19, depending on if you are born early or late in the year you are either 19 or 18 at the day of your graduation.
Read more about this topic: Twelfth Grade