Worldwide avionics sales for 2021 amounted to more than $2.3 billion, a 6.5% increase in total year-end sales compared to 2020, reported the Aircraft Electronics Association in its 2021 year-end Avionics Market Report.In the fourth quarter of 2021, sales were up 7.4% compared to the fourth quarter of the previous year. Fourth-quarter sales were also up 0.6% on the third quarter of 2021 and marked the sixth consecutive quarter of increasing sales.Of the more than $2.3 billion in sales in 2021, 54.6% came from the retrofit market, while forward-fit sales amounted to 45.4% of sales.When comparing sales figures in North America (the United States and Canada) and other international markets, 75.2% of the 2021 sales volume occurred in North America, while 24.8% took place in other international markets."Industry sales have been steadily climbing for six straight quarters after bottoming out in the second quarter of 2020," said AEA President and CEO Mike Adamson. "As the industry continues to recover from the initial jolt of the pandemic, avionics manufacturers are now dealing with supply chain issues that may impact sales through 2022. As a result, many OEMs are engaged in ongoing and proactive communications with their dealers and navigating through increasing lead times for some products."