use WWW;
use DOM::Tiny;
use Text::CSV;
use URI::Encode;
use HTTP::UserAgent;

constant OUT_FILE = 'results3.txt'.IO;

my $term = uri_encode "Cancer";

say "Searching for: $term";
for 1990..1990 -> $year {
    print "\t...year $year ";
    "temp".IO.spurt: get "https://patents.google.com/xhr/query?url=q%3D{$term}%26country%3DUS%26before%3Dfiling%3A{$year}1231%26after%3Dfiling%3A{$year}0101&exp=&download=true";
    #"temp".IO.spurt: get "https://patents.google.com/?q=Cancer&country=US&before=19901231&after=19900101", User-Agent => 'Test/5.0';
    my $results-num = csv(:in<temp>).elems - 2;
    say $results-num;
    OUT_FILE.spurt: :append, "$term,$year,$results-num\n";
}