| Variable | Name | SIC codes |
| Agric | Agriculture | 0100-0199, 0200-0299, 0700-0799, 0910-0919, 2048-2048 |
| Food | Food Products | 2000-2046, 2050-2063, 2070-2079, 2090-2092, 2095-2095, 2098-2099 |
| Soda | Candy & Soda | 2064-2068, 2086-2087, 2096-2097 |
| Beer | Beer & Liquor | 2080-2080, 2082-2085 |
| Smoke | Tobacco Products | 2100-2199 |
| Toys | Recreation | 0920-0999, 3650-3652, 3732-3732, 3930-3931, 3940-3949 |
| Fun | Entertainment | 7800-7833, 7840-7841, 7900-7900, 7910-7911, 7920-7933, 7940-4949, 7980-7980, 7990-7999 |
| Books | Printing and Publishing | 2700-2749, 2770-2771, 2780-2799 |
| Hshld | Consumer Goods | 2047-2047, 2391-2392, 2510-2519, 2590-2599, 2840-2844, 3160-3161, 3170-3172, 3190-3199, |
|
|
| 3229-3229, 3260-3260, 3262-3263, 3269-3269, 3230-3231, 3630-3639, 3750-3751, |
|
|
| 3800-3800-3860-3861, 3870-3873, 3910-3911, 3914-3915, 3960-3962, 3991-3991, 3995-3995 |
| Clths | Apparel | 2300-2390, 3020-3021, 3100-3111, 3130-3131, 3140-3151, 3963-3965 |
| MedEq | Medical Equipment | 3693-3693, 3840-3851 |
| Drugs | Pharmaceutical Products | 2830-2831, 2833-2836 |
| Chems | Chemicals | 2800-2829, 2850-2879, 2890-2899 |
| Rubbr | Rubber and Plastic Products | 3031-3031, 3041-3041, 3050-3053, 3060-3099 |
| Txtls | Textiles | 2200-2284, 2290-2295, 2297-2299, 2393-2395, 2397-2399 |
| BldMt | Construction Materials | 0800-0899, 2400-2439, 2450-2459, 2490-2499, 2660-2661, 2950-2952, 3200-3200, 3210-3211, |
|
|
| 3240-3241, 3250-3259, 3261-3261, 3264-3264, 3270-3275, 3280-3281, 3290-3293, 3295-3299, |
|
|
| 3420-3433, 3440-3442, 3446-3448 |
| Cnstr | Construction | 1500-1511, 1520-1549, 1600-1799 |
| Steel | Steel Works Etc | 3300-3300, 3310-3317, 3320-3325, 3330-3341, 3350-3357, 3360-3379, 3390-3399 |
| FabPr | Fabricated Products | 3400-3400, 3443-3444, 3460-3479 |
| Mach | Machinery | 3510-3536, 3538-3538, 3540-3569, 3580-3582, 3585-3586, 3589-3599 |
| ElcEq | Electrical Equipment | 3600-3600, 3610-3613, 3620-3621, 3623-3629, 3640-3646, 3648-3649, 3660-3660, 3690-3692, |
|
|
| 3699-3699 |
| Autos | Automobiles and Trucks | 2296-2296, 2396-2396, 3010-3011, 3537-3537, 3647-3647, 3694-3694, 3700-3700, 3710-3711, |
|
|
| 3713-3716, 3790-3792, 3799-3799 |
| Aero | Aircraft | 3720-3721, 3723-3725, 3728-3729 |
| Ships | Shipbuilding | 2*3730-3731, 3740-3743 |
|
| Railroad Equipment |
|
| Guns | Defense | 3760-3769, 3795-3795, 3480-3489 |
| Gold | Precious Metals | 1040-1049 |
| Mines | Non-Metallic and | 2*1000-1039, 1050-1119, 1400-1499 |
|
| Industrial Metal Mining |
|
| Coal | Coal | 1200-1299 |