is marked. 11. The United States with eBooks

0.355852 5.7132% 1970 0.665616 1.502367 5.5272% 1969 0.240041 4.165963 5.5714% 1968 1.341627 0.745364 5.0148% 1967 1.430288 0.699160 2.5719% 1966 0.237443 4.211535 3.5485% 1965 1.742239 0.573974 2.7360% 1964 1.107749 0.902731 1.5423% 1963 2.473271 0.404323 1.5697% 1962 0.846143 1.181833 2.2421% 1961 3.670620 0.272434 0.9709% 1960 3.862396 0.258907 1.6442%

CRT