Citation metrics are widely used and misused. Ioannidis and co-authors have created a publicly available database of 100,000 top scientists that provides standardized information on citations, h-index, coauthorship-adjusted hm-index, citations to papers in different authorship positions, and a composite indicator.
I have extracted here some data of interest for the Mechanical Engineering field (I’m a mechanical engineer by training), for scientist from all over the world and for Italian scientist. The tables report data obtained for 22 years (from 1996 to 2017) and for a single year (2017).
You find also the link to the original paper. This is an incredible source of data, publicly available, which could be used for a number of studies and comparisons!!! Feel free to go to the original source and provide new analysis based on this huge data collection!
link to the source of data: https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3000384
Update 29/08: more data attached.