<p>I actually have the October 1974 percentiles (all students) from a yellowed CB bulletin that my Dad (a high school administrator) happened to keep, here they are:</p>
<p>score verb math</p>
<p>800 99+ 99+
750 99+ 99+
700 99+ 99
650 99 98
600 97 94
550 93 88
500 86 80
450 76 69
400 64 56
350 49 41
300 33 23
250 17 5</p>
<p>The average verbal score was 368 (!) and average math was 402.</p>
<p>Perhaps a better comparison is the 1981 cohort of college bound seniors (in another slightly less yellow bulletin):</p>
<p>score verb math</p>
<p>800 99+ 99+
750 99+ 99
700 99 97
650 97 93
600 93 86
550 86 74
500 74 59
450 59 44
400 42 30
350 25 17
300 13 7
250 5 1</p>
<p>The average verbal score was 424 and average math was 466.</p>