I'll preface my answer by quickly saying that our move internationally started in about 2004, from zero. We've invested in playing in what I would consider the largest sandbox, playing around the world, and I think that from a Canadian perspective, it's a great story. We design and develop technologies and ship them around the world for new money coming into the country, and we've done that tremendously well.
To put it into perspective, in 2019, Canada represented about 3.5% of our revenue. The Canadian oil and gas industry has been significantly decimated. In any industry or any business, I look at the top of the food chain and its investment from exploration companies—I am talking about the Exxons and Shells and those large companies. The capital has left Canada.
When big companies are making investments, part of the investment decision is certainty and risk, risk around policy and the changing of policies. In Canada, if the government changes, the rules change a bit. My opinion is that there's a lot of uncertainty around the business climate in the oil and gas industry in Canada. That capital is gone. That capital is working in the U.S. We operate around the world, and a lot of that capital got reallocated.
To me, the attraction to invest in the Canadian oil and gas industry at the top of the food chain has disappeared. Until that gets restored, it's just going to continue to decline.