"Quality of life United States." . . "Electronic books." . . "United States" . . "United States Economic conditions Statistics." . . "Trend" . . "Cato Institute" . . "USA" . . "1900-2000" . . "Wirtschaftsindikator" . . "Estados Unidos" . . "Sozialer Indikator / Wirtschaftsindikator / USA." . . "United States Social conditions Statistics." . . . . "Sozialer Indikator" . . "Livres électroniques" . . . . . . . . . "It is getting better all the time" . "It is getting better all the time"@en . . . . . . "It's getting better all the time"@en . . . . . . "And now, a dose of good news. In a new book that will put the gloom-and-doom industry out of business, the Cato Institute says more human progress has been achieved in the last 100 years than in all of the previous centuries combined."@en . . "It's getting better all the time : 100 greatest trends of the last 100 years" . . . . . . . "It's getting better all the time 100 greatest trends of the last 100 years" . . "It's getting better all the time 100 greatest trends of the last 100 years"@en . . . . "Text and color graphs and charts describe changes in health, safety, welfare, and environmental and social conditions since 1900." . "Statistics" . . "Statistics"@en . . . . . . . . . "Electronic books"@en .