After a decade, national membership had grown to around 40 people, including four women, and continued to grow steadily throughout the century.

By 1968 there were thirty societies with a total national membership of over 5,500.

During his tenure, its national membership grew to 28,000 from 18,000; it now lists more than 32,000.

As of 2005, the organization has a national membership of over 50,000.

The name change was made to reflect its growing national and international membership which currently stands at around 500.

By 1992, the new team had the national (as opposed to branches) membership over 1600 again.

The national membership is estimated at 2,100 as of July 1, 2012.

The close of 2002 sees a local and national membership of nearly 4,000.

Recent estimates put the national membership at 100,000, with about 30,000 in Chicago.

Participation costs a school district $180 for local, state and national membership, plus an entry fee of $60 a team.