<P> The twelfth grade is the third and usually last year (a fourth year is possible) of High School or secondary school (or Gymnasium) The students graduate from High School the year they turn 19 . The twelfth grade is shorter than the previous ones because the twelfth graders lessons end in February and they go on to take their final exams shortly afterwards . Compulsory education ends after the ninth grade, so the upper grades are optional . </P> <P> The equivalent grade in this country is Terminale, it is the third year of lycée which is equivalent to High - School, upon completion of which students sit for a test, the Baccalauréat . French - language schools that teach the French government curriculum (i.e. are part of the AEFE network) use the same system of grades as their counterparts in France . This is not compulsory, as education is only compulsory until students turn 16 . </P> <P> In Germany, students wishing to take the Abitur usually had to attend a thirteenth grade, but most states are shortening the Gymnasium (the university - bound secondary school system in Germany) from nine to eight years . </P> <P> In Hong Kong, 12th grade is called Form 6 . Students in Form 6 are required to take the Hong Kong Diploma of Secondary Education (DSE) </P>

What grade is a 18 out of 23