AI_CATEGORY YEAR LBS_AI ACRES CARCINOGEN 1997 34317136 9950566 CARCINOGEN 1998 35141459 11645998 CARCINOGEN 1999 35439913 9947462 CARCINOGEN 2000 31696997 10789052 CARCINOGEN 2001 29463014 7912791 CARCINOGEN 2002 35897785 8031829 CARCINOGEN 2003 37761038 8781192 CARCINOGEN 2004 38021841 8955313 CARCINOGEN 2005 39113435 9606851 CARCINOGEN 2006 39572361 9522275 CARCINOGEN 2007 36718149 8668742 CARCINOGEN 2008 38517140 7898552 CARCINOGEN 2009 31951202 7888051 CARCINOGEN 2010 39497708 8964047 CARCINOGEN 2011 44332474 9786516 CARCINOGEN 2012 44900872 9443579 CARCINOGEN 2013 43124471 9224109 CARCINOGEN 2014 41944590 9056482 CARCINOGEN 2015 46458394 9021706 CARCINOGEN 2016 44010523 9198784 CARCINOGEN 2017 41773458 9231368 CARCINOGEN 2018 41652423 8625989 CARCINOGEN 2019 39588247 8714980 CARCINOGEN 2020 42123800 8433168 CARCINOGEN 2021 37189859 6933541