country	continent	year	lifeExp	pop	gdpPercap
United_States	Americas	1952	68.44	157553000	13990.48208
United_States	Americas	1972	71.34	209896000	21806.03594
United_States	Americas	1957	69.49	171984000	14847.12712
United_States	Americas	1987	75.02	242803533	29884.35041
United_States	Americas	1967	70.76	198712000	19530.36557
United_States	Americas	1997	76.81	272911760	35767.43303
United_States	Americas	2002	77.31	287675526	39097.09955
United_States	Americas	1962	70.21	186538000	16173.14586
United_States	Americas	1982	74.65	232187835	25009.55914
United_States	Americas	1992	76.09	256894189	32003.93224
United_States	Americas	1977	73.38	220239000	24072.63213
United_States	Americas	2007	78.242	301139947	42951.65309
