rank name nationality time
rank
name
nationality
time
number
number min sec
number text text time
4 brahim boulami morocco 8:17.73
what counties had the least participants for the race ?
WDT NNS VBD-AUX DT JJS NNS IN DT NN .
Morocco|France|Spain
select c3 from w group by c3 having count ( c2 ) = ( select count ( c2 ) from w group by c3 order by count ( c2 ) asc limit 1 )