Statement:
In Yemen scientists published less significant scientific articles than in The USA

In the Citatable Scientific Publications rating Yemen holds position #93 ²⁰²¹ out of 206 and The USA is #2 out of 206 ²⁰²¹.
Position of Yemen is worse than position of The USA.

Referencies:

1. Citatable Scientific Publications ²⁰²¹ by Scimago Journal & Country Rank

   The countries in the rating sorted by 'Citable documents' in descending order.

   The USA	'Citable documents' value is	649,063
   Yemen	'Citable documents' value is	1,599