| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| hollerith card | 0.36 | 0.2 | 6200 | 48 | 14 |
| hollerith | 1.22 | 0.4 | 8096 | 40 | 9 |
| card | 1.89 | 0.3 | 4833 | 74 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| hollerith card | 0.53 | 0.2 | 8413 | 36 |
| hollerith card reader | 0.4 | 0.2 | 5563 | 79 |
| hollerith card decoder | 0.4 | 0.7 | 9435 | 28 |
| herman hollerith punch card | 0.19 | 0.7 | 6143 | 8 |
| hollerith punch card machine | 0.53 | 0.1 | 5384 | 38 |
| herman hollerith punch card system | 0.34 | 0.3 | 3760 | 99 |
| hollerith machine is a punch card system | 1.7 | 0.6 | 4893 | 67 |
| hollerith punched card | 1.68 | 0.1 | 6672 | 63 |
| hollerith punch cards | 1.27 | 0.9 | 7886 | 15 |
| hollerith punch card wreaths | 1.96 | 0.1 | 3631 | 84 |
| punched card herman hollerith | 1.86 | 0.7 | 2554 | 44 |
