Passage: By 2011 fewer than 7% of employees in the private sector belonged to unions. The UAW's numbers of automobile union members are representative of the manufacturing sector: 1,619,000 active members in 1970, 1,446,000 in 1980, 952,000 in 1990, 623,000 in 2004, and 377,000 in 2010 . By 2014, coal mining had largely shifted to open-pit mines in Wyoming, and there were only 60,000 active coal miners.  The UMW has 35,000 members, of whom 20,000 were coal miners, chiefly in underground mines in Kentucky and West Virginia. By contrast it had 800,000 members in the late 1930s. However it remains responsible for pensions and medical benefits for 40,000 retired miners, and for 50,000 spouses and dependents.
How many cities had underground mines? How many fewer member did the union have in 2010 vs 2004? How many fewer members were there in 2010 vs 1970? How many less members did the automobile union have in 1980 than in 1970? How many members did the UAW lose between 1980 and 1990? How many members did the UAW lose between 1990 and 2004? How many members did the UAW lose between 2004 and 2010? How many members of the UMW are not coal miners? How many more active union members of the manufacturing sector were there in 1970 compared to 1980? How many more active union members of the manufacturing sector were there in 2004 compared to 2010? How many of UMW's members were not coal miners? How many of the 35,000 UMW members were not coal miners? How many of the 35,000 members of UMW are not coal miners? How many retired miners and dependents all together are the unions responsible for? How many states were most of the underground mines in? How many total peoples pensions and medical benefits is the UMW responsible for? Were there more union members in 1970 or 2010? What were mostly in Kentucky and West Virginia? Which year did the union have less member, 2010 or 2004? Which year did the union have more members 1980 or 1970? Which year had less than 900000 automobile union members but more than 400000? Which year had more UMW members, 2014 or 1930? Which year had more automobile union members, 1990 or 2010? Which year had the least active automobile union members? Who belonged in the private sector of unions?