uniq -c

When I do uniq -c on a list of sorted numbers,

for eg:

1
1
2
2
2
3
3
4

It outputs 2 1
3 2
2 3
1 4.

Now, is there a way to sort on the column that "uniq -c" produced?

That is, is there a way to sort on the first column in the above result?

Thanks,
Prasanna

uniq -c |sort -n

How do you specify the delimiter to sort in this case, and ask it to sort on the 1st column?

What exactly would be delimiter after a uniq -c is done?