From 1974 until 1999, the exam had 30 questions and was 90 minutes long, scoring 5 points for correct answers. Originally during this time period, 1 point was awarded for leaving an answer blank, however it was changed in the late 1980s to 2 points for omitted questions. When the exam was shortened as part of the 2000 rebranding, the value of a correct answer was increased to 6 points (keeping 150 as a perfect score).