| 年份 | 美国 | 日本 | ||
|---|---|---|---|---|
| 人口 | 占世界% | 人口 | 占世界% | |
| 2021 | 5.54千万 (55,356,211) | 7.2969% | 3.74千万 (37,436,889) | 4.9348% |
| 2020 | 5.38千万 (53,780,747) | 7.2959% | 3.74千万 (37,352,017) | 5.0672% |
| 2019 | 5.18千万 (51,849,212) | 7.2816% | 3.71千万 (37,077,906) | 5.2071% |
| 2018 | 5.03千万 (50,325,557) | 7.3253% | 3.67千万 (36,650,477) | 5.3348% |
| 2017 | 4.90千万 (48,983,844) | 7.3910% | 3.61千万 (36,141,302) | 5.4533% |
| 2016 | 4.74千万 (47,402,094) | 7.4132% | 3.55千万 (35,512,557) | 5.5538% |
| 2015 | 4.60千万 (45,954,694) | 7.4419% | 3.47千万 (34,745,347) | 5.6267% |
| 2014 | 4.50千万 (45,005,701) | 7.5390% | 3.38千万 (33,762,485) | 5.6556% |
| 2013 | 4.39千万 (43,904,126) | 7.5946% | 3.26千万 (32,602,328) | 5.6396% |
| 2012 | 4.26千万 (42,638,513) | 7.6015% | 3.15千万 (31,457,297) | 5.6081% |
| 2011 | 4.13千万 (41,347,761) | 7.5789% | 3.07千万 (30,651,515) | 5.6183% |
| 2010 | 4.03千万 (40,299,692) | 7.5568% | 3.02千万 (30,225,206) | 5.6677% |
| 2009 | 3.94千万 (39,439,341) | 7.5466% | 2.97千万 (29,663,227) | 5.6759% |
| 2008 | 3.85千万 (38,531,316) | 7.5213% | 2.89千万 (28,918,875) | 5.6450% |
| 2007 | 3.77千万 (37,677,408) | 7.5034% | 2.81千万 (28,084,356) | 5.5930% |
| 2006 | 3.71千万 (37,064,967) | 7.5422% | 2.72千万 (27,178,297) | 5.5304% |
| 2005 | 3.65千万 (36,526,333) | 7.6086% | 2.63千万 (26,326,876) | 5.4840% |
| 2004 | 3.60千万 (36,028,870) | 7.6869% | 2.56千万 (25,630,222) | 5.4683% |
| 2003 | 3.56千万 (35,619,261) | 7.7882% | 2.50千万 (24,992,848) | 5.4647% |
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| 2002 | 3.53千万 (35,341,824) | 7.9275% | 2.42千万 (24,245,889) | 5.4386% |
| 2001 | 3.50千万 (35,042,477) | 8.0698% | 2.34千万 (23,420,079) | 5.3933% |
| 2000 | 3.48千万 (34,755,721) | 8.2145% | 2.26千万 (22,584,255) | 5.3378% |
| 1999 | 3.46千万 (34,590,275) | 8.3823% | 2.18千万 (21,810,613) | 5.2854% |
| 1998 | 3.44千万 (34,375,471) | 8.5409% | 2.11千万 (21,054,517) | 5.2312% |
| 1997 | 3.41千万 (34,120,304) | 8.6976% | 2.03千万 (20,271,583) | 5.1674% |
| 1996 | 3.38千万 (33,809,937) | 8.8446% | 1.95千万 (19,503,381) | 5.1020% |
| 1995 | 3.34千万 (33,400,936) | 8.9753% | 1.88千万 (18,774,576) | 5.0450% |
| 1994 | 3.28千万 (32,848,593) | 9.0757% | 1.81千万 (18,076,140) | 4.9942% |
| 1993 | 3.23千万 (32,301,040) | 9.1809% | 1.74千万 (17,380,100) | 4.9399% |
| 1992 | 3.18千万 (31,799,644) | 9.3015% | 1.67千万 (16,688,227) | 4.8814% |
| 1991 | 3.12千万 (31,184,733) | 9.3830% | 1.60千万 (15,989,095) | 4.8109% |
| 1990 | 3.07千万 (30,664,878) | 9.4842% | 1.53千万 (15,310,853) | 4.7354% |
| 1989 | 3.03千万 (30,296,884) | 9.6261% | 1.47千万 (14,696,743) | 4.6695% |
| 1988 | 2.97千万 (29,708,566) | 9.6977% | 1.41千万 (14,146,869) | 4.6180% |
| 1987 | 2.91千万 (29,073,381) | 9.7387% | 1.37千万 (13,652,017) | 4.5730% |
| 1986 | 2.86千万 (28,621,138) | 9.8231% | 1.32千万 (13,187,087) | 4.5259% |
| 1985 | 2.81千万 (28,102,304) | 9.8763% | 1.27千万 (12,737,878) | 4.4766% |
| 1984 | 2.75千万 (27,503,370) | 9.8756% | 1.23千万 (12,326,514) | 4.4261% |
| 1983 | 2.70千万 (27,001,838) | 9.8646% | 1.20千万 (11,976,071) | 4.3752% |
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| 1982 | 2.66千万 (26,595,157) | 9.8620% | 1.16千万 (11,613,955) | 4.3067% |
| 1981 | 2.61千万 (26,116,560) | 9.8380% | 1.12千万 (11,234,679) | 4.2320% |
| 1980 | 2.56千万 (25,627,777) | 9.8308% | 1.09千万 (10,861,556) | 4.1665% |
| 1979 | 2.51千万 (25,149,864) | 9.8744% | 1.05千万 (10,478,272) | 4.1140% |
| 1978 | 2.46千万 (24,570,243) | 9.9184% | 1.01千万 (10,089,223) | 4.0728% |
| 1977 | 2.39千万 (23,928,436) | 9.9427% | 9.71百万 (9,708,881) | 4.0342% |
| 1976 | 2.32千万 (23,231,530) | 9.9374% | 9.34百万 (9,342,855) | 3.9964% |
| 1975 | 2.26千万 (22,559,952) | 9.9349% | 9.00百万 (8,999,100) | 3.9630% |
| 1974 | 2.20千万 (21,958,933) | 9.9636% | 8.66百万 (8,659,053) | 3.9289% |
| 1973 | 2.14千万 (21,427,820) | 10.0192% | 8.34百万 (8,337,446) | 3.8984% |
| 1972 | 2.09千万 (20,938,787) | 10.0831% | 8.02百万 (8,019,081) | 3.8616% |
| 1971 | 2.05千万 (20,515,369) | 10.1665% | 7.74百万 (7,736,659) | 3.8339% |
| 1970 | 2.01千万 (20,101,763) | 10.2490% | 7.44百万 (7,442,636) | 3.7947% |
| 1969 | 1.97千万 (19,738,458) | 10.3443% | 7.23百万 (7,234,133) | 3.7912% |
| 1968 | 1.95千万 (19,497,559) | 10.5018% | 7.01百万 (7,008,556) | 3.7750% |
| 1967 | 1.92千万 (19,182,094) | 10.6277% | 6.77百万 (6,768,161) | 3.7499% |
| 1966 | 1.88千万 (18,828,051) | 10.7331% | 6.51百万 (6,512,803) | 3.7127% |
| 1965 | 1.86千万 (18,563,535) | 10.8800% | 6.29百万 (6,288,364) | 3.6856% |
| 1964 | 1.83千万 (18,265,103) | 10.9903% | 6.09百万 (6,093,879) | 3.6667% |
| 1963 | 1.79千万 (17,886,003) | 11.0293% | 5.90百万 (5,899,224) | 3.6377% |
| 1962 | 1.75千万 (17,489,504) | 11.0458% | 5.72百万 (5,719,310) | 3.6121% |
| 1961 | 1.71千万 (17,102,576) | 11.0382% | 5.56百万 (5,560,966) | 3.5891% |
| 1960 | 1.67千万 (16,676,728) | 10.9477% | 5.41百万 (5,405,847) | 3.5487% |
| 1959 | 1.61千万 (16,136,574) | 10.8611% | 5.08百万 (5,082,616) | 3.4210% |