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I was reading a short news article on students taking entrance exams in Japan,
and it listed the number of students from the prefecture who took what test.

Here is the excerpt I had a question about:

> 、、、、受験者数は、地理歴史・公民（１）２０５１人、同（２）４８０４人、、、、

It goes on to list subjects and give the number of people taking the test.

I know `同` is used to like "the above-mentioned [blank]", usually about a
group or organization, but here I think it's referencing to the subjects. I'm
a little hesitant on the (1) and (2) parts.

What I _think_ it says is this that 2051 people are taking the `地理{ちり}歴史{れきし}`
(geography and history) and 4804 people are taking `公民{こうみん}` (civics). What I
don't understand is why `地理歴史・公民` has to be broken up like it is. All the
other subjects are listed individually (including separating "foreign
language" and "English listening").

So my question is two-fold. A) Did I understand it correctly, and B) Why was
it written like it was?
CC BY-SA 3.0
2012-01-16T22:37:03.127
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2012-01-16T23:04:47.963
921
question
grammar
Help with newspaper shorthand
「地理歴史・公民」is a group of subjects which
includes「世界史Ａ」、「世界史Ｂ」、「日本史Ａ」、「日本史Ｂ」、「地理Ａ」、「地理Ｂ」、「現代社会」、「倫理」、「政治・経済」、「倫理、政治･経済」.  
  
(1) and (2) show how many of these each student chose.
CC BY-SA 3.0
2012-01-16T23:04:47.963
4308
2012-01-16T23:04:47.963
4307
answer