diff --git a/professions.rb b/professions.rb
new file mode 100755
index 0000000..647c60b
--- /dev/null
+++ b/professions.rb
@@ -0,0 +1,38 @@
+#!/usr/bin/env ruby
+require 'amazing_print'
+require 'date'
+require 'zlib'
+require 'oj'
+require_relative 'config.rb'
+
+reports = ARCDPS_BOSSES.fetch(:raids).collect do |boss|
+    Dir["html/*_#{boss}_*.json.gz"].collect do |file|
+        name = File.basename file
+        date, boss, *_ = name.split '_'
+        date = date.sub '-', ''
+        date = DateTime.parse date
+        [file, date, boss]
+    end.group_by { |_, date, boss| [date.to_date, boss] }
+    .to_h
+    .transform_values { |v| v.sort { |a, b| a[1] <=> b[1] }.first }
+    .collect { |_, v| v.first }
+end.flatten(1)
+
+count = reports.count
+puts "#{count} reports"
+
+reports = reports.collect do |file|
+    json = File.open file do |fid|
+        json = Zlib::GzipReader.new fid
+        Oj.load json.read
+    end
+    json.fetch('players').collect { |p| p.fetch('profession') }
+end.flatten(1)
+
+count = reports.count
+reports = reports.inject(Hash.new 0) { |h, e| h[e] += 1; h }
+                    .sort { |a, b| b.last <=> a.last }
+                    .to_h
+                    .transform_values { |c| "#{c} (#{(c.to_f/count*100).round(2)}%)" }
+
+ap reports