Sub-Chapter200520062007200820092010
Human hair, unworked, whether or not washed or scoured; waste of human hair ...$155$307$1,581   
Pigs', hogs' or boars' bristles and hair;$7,489$1,384$1,070   
Horsehair and horsehair waste $1,230    
Guts, bladders and stomachs of animals (other than fish)$5,144 $41,277   
Skins and other parts of birds, with their feathers or down$75,322$24,087$1,000   
Bones and horn-cores, unworked, defatted$92,041$57,205$43,614   
Ivory, tortoise-shell, whalebone, horns, antlers, hooves, nails, etc$32,310$10,250$16,825   
Coral and similar materials, unworked or simply prepared$290,855$244,832$265,630$117,067$101,609$141,867
Natural sponges of animal origin.$39,876$37,230    
Ambergris, castoreum, civet and musk;$123,239$163,149$153,669   
Animal products not elsewhere specified or included;$3,401,451$3,840,840$4,492,937  $4,283,205
Total$4,067,882$4,380,514$5,017,603$117,067$101,609$4,425,072