"brand_name","tar_content_mg","nicotine_content_mg","weight_g","carbon_monoxide_content_mg"
"Alpine",14.1,0.86,0.9853,13.6
"Benson&Hedges",16.0,1.06,1.0938,16.6
"Bull Durham",29.8,2.03,1.1650,23.5
"Camel Lights",8.0,0.67,0.9280,10.2
"Carlton",4.1,0.40,0.9462,5.4
"Chesterfield",15.0,1.04,0.8885,15.0
"Golden Lights",8.8,0.76,1.0267,9.0
"Kent",12.4,0.95,0.9225,12.3
"Kool",16.6,1.12,0.9372,16.3
"L&M",14.9,1.02,0.8858,15.4
"Lark Lights",13.7,1.01,0.9643,13.0
"Marlboro",15.1,0.90,0.9316,14.4
"Merit",7.8,0.57,0.9705,10.0
"Multi Filter",11.4,0.78,1.1240,10.2
"Newport Lights",9.0,0.74,0.8517,9.5
"Now",1.0,0.13,0.7851,1.5
"Old Gold",17.0,1.26,0.9186,18.5
"Pall Mall Light",12.8,1.08,1.0395,12.6
"Raleigh",15.8,0.96,0.9573,17.5
"Salem Ultra",4.5,0.42,0.9106,4.9
"Tareyton",14.5,1.01,1.0070,15.9
"True",7.3,0.61,0.9806,8.5
"Viceroy Rich Light",8.6,0.69,0.9693,10.6
"Virginia Slims",15.2,1.02,0.9496,13.9
"Winston Lights",12.0,0.82,1.1184,14.9