puts "<tr><th>User</th><th>Number of Points</th></tr>"
Trace.where(:inserted => true).group(:user_id).order("sum_size DESC").limit(50).sum(:size).each do |user, count|
puts "<tr><th>User</th><th>Number of Points</th></tr>"
Trace.where(:inserted => true).group(:user_id).order("sum_size DESC").limit(50).sum(:size).each do |user, count|