Table:
Years ended December 31,

2019	2018

Products and Licensing revenue	$44,491,041	$21,949,689

Technology Development revenue	26,024,674	20,967,556

Total revenue	$70,515,715	$42,917,245

Products and Licensing operating income	$1,807,616	$499,323

Technology Development operating income	1,507,405	378,212

Total operating income	$3,315,021	$877,535

Depreciation, Technology Development	$397,296	$379,952

Depreciation, Products and Licensing	$552,285	$273,185

Amortization, Technology Development	$91,185	$130,765

Amortization, Products and Licensing	$1,462,525	$418,349

Answer the following question considering the table plus the background text, feel free to explain how you reached the answer, then present the result in JSON format {"answer": ["ANSWER"], "scale": "SCALE"} (leave scale empty if none).

Text:
17. Financial Information About Segments
Our operations are divided into two reportable segments: Products and Licensing and Technology Development. The Products and Licensing segment develops and sells products or licenses technologies based on commercially viable concepts developed by the Technology Development segment. The Products and Licensing segment derives its revenue from product sales, funded product development and technology licenses.
Our engineers and scientists collaborate with our network of government, academic and industry experts to identify technologies and ideas with promising market potential. We then compete to win fee-for-service contracts from government agencies and industrial customers who seek innovative solutions to practical problems that require new technology. The Technology Development segment derives its revenue primarily from services. The Technology Development segment provides applied research to customers in our areas of focus.
Our President and Chief Executive Officer and his direct reports collectively represent our chief operating decision makers, and they evaluate segment performance based primarily on revenue and operating income or loss.
Information about the results of operations for each segment is set forth in the table below. There were no significant inter-segment sales during the years ended December 31, 2019 and 2018.
During the years ended December 31, 2019 and 2018, 32% and 24%, respectively, of our total sales took place outside the United States. Customers in China represented 11% of total revenues in the year ended December 31, 2019, while no other single country, outside of the United States, represented more than 10% of total revenues in the year ended December 31, 2018.

Question: What was the Products and Licensing revenue in 2019 and 2018 respectively?

{"answer": ["$44,491,041", "$21,949,689"], "scale": ""}