| 年份 | 美国 | 日本 | ||
|---|---|---|---|---|
| 森林面积(平方公里) | 占世界% | 森林面积(平方公里) | 占世界% | |
| 2016 | 310万 (3,103,700) | 7.7674% | 24.96万 (249,564) | 0.6246% |
| 2015 | 310万 (3,100,950) | 7.7541% | 24.96万 (249,580) | 0.6241% |
| 2014 | 310万 (3,098,200) | 7.7408% | 24.96万 (249,595) | 0.6236% |
| 2013 | 310万 (3,095,450) | 7.7275% | 24.96万 (249,611) | 0.6231% |
| 2012 | 309万 (3,092,700) | 7.7143% | 24.96万 (249,628) | 0.6227% |
| 2011 | 309万 (3,089,950) | 7.7011% | 24.96万 (249,644) | 0.6222% |
| 2010 | 309万 (3,087,200) | 7.6879% | 24.97万 (249,660) | 0.6217% |
| 2009 | 308万 (3,079,274) | 7.6616% | 24.96万 (249,598) | 0.6210% |
| 2008 | 307万 (3,071,348) | 7.6354% | 24.95万 (249,535) | 0.6204% |
| 2007 | 306万 (3,063,421) | 7.6093% | 24.95万 (249,474) | 0.6197% |
| 2006 | 306万 (3,055,495) | 7.5831% | 24.94万 (249,411) | 0.6190% |
| 2005 | 305万 (3,047,570) | 7.5571% | 24.93万 (249,350) | 0.6183% |
| 2004 | 305万 (3,045,128) | 7.5425% | 24.92万 (249,231) | 0.6173% |
| 2003 | 304万 (3,042,685) | 7.5279% | 24.91万 (249,114) | 0.6163% |
| 2002 | 304万 (3,040,244) | 7.5133% | 24.9万 (248,995) | 0.6153% |
| 2001 | 304万 (3,037,801) | 7.4988% | 24.89万 (248,878) | 0.6144% |
| 2000 | 304万 (3,035,360) | 7.4844% | 24.88万 (248,760) | 0.6134% |
| 1999 | 303万 (3,034,274) | 7.4683% | 24.88万 (248,834) | 0.6125% |
| 1998 | 303万 (3,033,188) | 7.4523% | 24.89万 (248,908) | 0.6115% |
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| 1997 | 303万 (3,032,101) | 7.4364% | 24.9万 (248,981) | 0.6106% |
| 1996 | 303万 (3,031,015) | 7.4205% | 24.91万 (249,055) | 0.6097% |
| 1995 | 303万 (3,029,930) | 7.4046% | 24.91万 (249,130) | 0.6088% |
| 1994 | 303万 (3,028,844) | 7.3889% | 24.92万 (249,204) | 0.6079% |
| 1993 | 303万 (3,027,758) | 7.3731% | 24.93万 (249,278) | 0.6070% |
| 1992 | 303万 (3,026,671) | 7.3575% | 24.94万 (249,351) | 0.6061% |
| 1991 | 303万 (3,025,585) | 7.3419% | 24.94万 (249,425) | 0.6053% |
| 1990 | 302万 (3,024,500) | 7.3263% | 24.95万 (249,500) | 0.6044% |