Statement:
Montenegro has a lower Human Development Index than San Marino

In the Human Development Index rating Montenegro holds position #50 ²⁰²¹ out of 187 and San Marino is #44 out of 187 ²⁰²¹.
Position of Montenegro is worse than position of San Marino.

Referencies:

1. Human Development Index ²⁰²¹ by United Nations

   The countries in the rating sorted by 'Human Development Index' in descending order.

   Montenegro	'Human Development Index' value is	0.83
   San Marino	'Human Development Index' value is	0.85