https://www.tdu.org/news/central-sta...nd-182-billion

April 15, 2014: The Central States Pension third quarter 2013 financial report shows that assets increased to $18.2 billion, due to the run-up of the stock market last year.

The fund made 12.2% return on investment for the first nine months of 2013, which explains the growth in assets. The report indicates that the fund has 63,000 active participants and 210,000 retirees.
It seems to me that even with the little organizing that is being done today it is "NOT" the priority of the local to get them in the pension fund..Sadly IMO it is more about the dues to keep operating the locals..