Commodity20052006200720082009
Anti-knock preps. based on lead comps.$387$690$733$318$554
Anti-knock preps. other than those based on lead comps.$1,533$1,478$1,713$2,334$3,303
Additives for lubricating oils cont. petroleum oils/oils obt. from bitumino ...$317$313$579$101 
Additives for lubricating oils (excl. of 3811.21)$534$537$1,372$840$2,607
Oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive p ...$6,855$3,816$4,138$6,512$5,710
Total$9,626$6,834$8,535$10,105$12,174