Which country published the least papers?
select t1.country from inst as t1 join authorship as t2 on t1.instid = t2.instid join papers as t3 on t2.paperid = t3.paperid group by t1.country order by count ( * ) limit 1
How about country with most papers?
select t1.country from inst as t1 join authorship as t2 on t1.instid = t2.instid join papers as t3 on t2.paperid = t3.paperid group by t1.country order by count ( * ) desc limit 1
How many papers did it publish?
select count ( t3.paperid ) from inst as t1 join authorship as t2 on t1.instid = t2.instid join papers as t3 on t2.paperid = t3.paperid group by t1.country order by count ( * ) desc limit 1