The National Science Foundation in the US has published an analysis of Doctorate Recipients from US Universities in 2017, showing a slight dip to slightly below 55 000 PhD degrees conferred in 2017. The long term has been steeply upwards from less than 10 000 in 1958 to more than 55 000 in 2016. 2017 might be a temporary dip, like were seen before in 1969, 1998, and 2008.
The report looks at fields, interstate and international mobility, backgrounds of students and tries to identify trends. It is interesting to put this report against the earlier OECD overview of New doctoral graduates per thousand population aged 25-34 which gives the number of new PhD degrees per 1000 inhabitants. With a US population about 328 million this number would be close to 6 per 1000 in the US. Against this, the EU countries compare thinly with an EU average of less than 1,4 per 1000. Of the ´Aurora´ counties, Germany (~2,2), the Netherlands (~2,0), the UK (~1,9), Sweden (~1,6), and Belgium (~ 1,5) are above the EU average, France is below (~1,2). Norway and Iceland are not listed.