List the main industry with highest total market value and its number of companies.
return industries ;return companies of  #1 ;return market values of  #2 ;return sum of  #3 for each  #1 ;return #1 where  #4 is highest ;return companies of  #5 ;return number of  #6 ;return #5 ,  #7
['select', 'project', 'project', 'group', 'superlative', 'project', 'aggregate', 'union']