Researchers in R&D are professionals engaged in the conception or creation of new knowledge, products, processes, methods, or systems and in the management of the projects concerned. Postgraduate PhD students (ISCED97 level 6) engaged in R&D are included.
| 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Austria | 3,471 | 4,379 | 4,431 | 4,721 | 4,782 | 5,009 | 5,073 | 5,400 | 5,416 | 5,682 | 5,959 | 5,829 | 6,323 | 6,659 | |
| Belgium | 2,983 | 3,173 | 3,756 | 3,880 | 4,117 | 4,162 | 4,545 | 4,732 | 4,798 | 4,757 | 5,040 | 5,291 | 5,419 | 6,597 | 6,983 |
| Cyprus | 439 | 930 | 1,105 | 1,092 | 1,022 | 1,027 | 1,051 | 1,011 | 1,059 | 1,210 | 1,408 | 1,658 | 1,740 | 1,743 | 1,728 |
| Estonia | 1,903 | 2,451 | 3,058 | 3,393 | 3,458 | 3,338 | 3,286 | 3,188 | 3,296 | 3,552 | 3,766 | 3,770 | 3,836 | 4,036 | 4,655 |
| Finland | 7,559 | 7,741 | 7,442 | 7,492 | 7,223 | 7,022 | 6,856 | 6,544 | 6,731 | 6,873 | 7,246 | 7,548 | 7,870 | 8,073 | |
| France | 2,903 | 3,298 | 3,850 | 3,921 | 4,052 | 4,134 | 4,210 | 4,311 | 4,392 | 4,547 | 4,671 | 4,774 | 4,883 | 5,058 | 5,182 |
| Germany | 3,154 | 3,316 | 4,056 | 4,192 | 4,356 | 4,380 | 4,336 | 4,755 | 4,840 | 5,058 | 5,209 | 5,399 | 5,390 | 5,521 | 5,787 |
| Greece | 1,787 | 2,217 | 2,236 | 2,655 | 2,734 | 3,197 | 2,727 | 3,251 | 3,416 | 3,645 | 4,008 | 4,244 | 4,927 | ||
| Ireland | 2,256 | 2,821 | 3,117 | 3,341 | 4,874 | 5,142 | 5,291 | 5,242 | 5,144 | 5,114 | 4,657 | 4,961 | 5,196 | 5,213 | 5,512 |
| Italy | 1,155 | 1,413 | 1,723 | 1,761 | 1,831 | 1,916 | 1,947 | 2,076 | 2,210 | 2,322 | 2,524 | 2,671 | 2,615 | 2,659 | 2,796 |
| Latvia | 1,601 | 1,458 | 1,837 | 1,902 | 1,909 | 1,791 | 1,872 | 1,819 | 1,601 | 1,785 | 1,786 | 1,891 | 2,134 | 2,395 | 2,270 |
| Lithuania | 2,215 | 2,276 | 2,736 | 2,748 | 2,671 | 2,879 | 3,082 | 2,795 | 2,950 | 3,068 | 3,181 | 3,445 | 3,643 | 3,947 | 4,154 |
| Luxembourg | 3,800 | 4,826 | 5,200 | 5,526 | 4,402 | 4,662 | 4,783 | 4,636 | 4,802 | 4,969 | 4,755 | 5,091 | 4,689 | 4,939 | 4,879 |
| Netherlands | 2,638 | 2,909 | 3,210 | 3,648 | 4,336 | 4,887 | 4,926 | 4,892 | 5,109 | 5,273 | 5,497 | 5,592 | 5,799 | 6,004 | 6,319 |
| Portugal | 1,634 | 2,013 | 3,924 | 4,166 | 4,032 | 3,606 | 3,658 | 3,725 | 3,992 | 4,348 | 4,614 | 4,859 | 5,131 | 5,431 | 5,687 |
| Slovak Republic | 1,851 | 2,031 | 2,817 | 2,841 | 2,827 | 2,723 | 2,724 | 2,659 | 2,609 | 2,803 | 3,003 | 3,117 | 3,167 | 3,211 | 3,387 |
| Slovenia | 2,184 | 2,634 | 3,770 | 4,288 | 4,331 | 4,237 | 4,167 | 3,837 | 3,940 | 4,511 | 4,880 | 5,061 | 5,187 | 5,235 | 5,370 |
| Spain | 1,874 | 2,516 | 2,880 | 2,775 | 2,693 | 2,624 | 2,614 | 2,623 | 2,713 | 2,847 | 2,984 | 3,048 | 3,052 | 3,230 | 3,387 |
| Malta | 1,162 | 1,392 | 1,761 | 1,969 | 1,880 | 1,835 | 1,865 | 1,990 | 2,027 | 1,905 | 1,903 | 1,965 | 2,158 | 2,428 |