For instance, according to Pew study in 2009, only 5% of the total US population did not have a belief in a god. Out of all those without a belief in a god, only 24% self-identified as "atheist", while 15% self-identified as "agnostic", 35% self-identified as "nothing in particular", and 24% identified with a religious tradition.[19] The Nones tend to be more politically liberal and their growth has resulted in some increases in membership of secular organizations. However, the overwhelming majority of those without religion are not joining secular groups or even aligning with secularism.[20]