Still following the 2019 ranking by Stanford scientists that have put Professor Michael Grätzel, the inventor of dye-sensitized solar cells (“Grätzel cells”) in the first position (check link above) see below an updated ranking on Scopus Highly Cited Scientists (SHCS) published a few weeks ago on October 16:
Below data for the ratio of (SHCS/million inhabitants) for several countries taken from that ranking:
Switzerland.........295
Denmark.............257
Sweden...............247
UK......................225
Australia..............217
USA....................207
Finland................188
Israel...................185
Norway................175
New Zeland.........164
Singapore...........135
Iceland.................118
Germany.............105
Italy.......................66
Greece.................60
Cyprus..................47
Portugal...............37