Get number of results in filtered query

[Fundera Developer]

Hi all,

we are developing a search engine in which all the possible results have 
one or more countries associated. If, apart from writing the query, the 
user selects a country, we use a filterquery to restrict the results to 
those that match the query and are associated to that country. Nothing 
spectacular so far  :-D

However, we would like to show the number of results that are returned 
by the unfiltered query, since we already have the number of results 
associated to each country as we are also faceting on that field. Is it 
possible to have that number without executing the query twice?

Thanks in advance!