Education too contains a high proportion of workers paid below-average wages.
There's a large proportion of workers of color in unions today.
A far greater proportion of workers in those sectors would be affected, the report said.
The so-called support ratio (roughly, the proportion of workers to pensioners) is declining everywhere.
The proportion of workers in different employment types has remained largely unchanged over time.
The metropolitan New York area was second to San Francisco, however, in the proportion of workers with long commutes.
The proportion of workers whose employers cover them fell from 65% in 2001 to 59% in 2007.
According to ABS yearbooks, the proportion of workers employed in Australian agriculture fell from 30.2% in 1911 to 4.3% in 1996.
The proportion of workers with only a high school diploma has correspondingly fallen to 34percentt from 39percentt in 1988.
The proportion of workers aged over 50 has risen significantly over the last 20 years, according to a new analysis by the TUC.
Despite huge recruitment and retention efforts over the last two decades, unions represent an ever smaller proportion of workers in a continually expanding and deregulated labour market.
