I am no expert, and the number are approximate,
Back in the 80's they employed over 10,000 people were producing upwards of 1500 rigs a day.
Fast forward to today, they employ approximately 150 people at the factory, 10 people at their headquarters in Redmond Washington and produce 800-1000 rigs a year. Their production low was in 2008 at around 450 rigs for the year.
"Take care, sir," cried Sancho. "Those over there are not giants but windmills".