Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
history of the laser 1992 | 1.04 | 0.8 | 2704 | 14 |
history of the laser 1993 | 0.92 | 1 | 6114 | 34 |
history of the laser 1991 | 0.52 | 0.3 | 308 | 43 |
history of the laser 1990 | 0.05 | 1 | 5273 | 1 |
history of the laser 1994 | 1.46 | 0.6 | 8469 | 2 |
history of the laser 1995 | 0.38 | 0.6 | 4951 | 81 |
history of the laser 1996 | 0.82 | 1 | 3236 | 94 |
history of the laser 1997 | 1.24 | 0.2 | 609 | 78 |
history of the laser 1998 | 0.99 | 0.4 | 6921 | 77 |
history of the laser 1999 | 0.77 | 0.2 | 160 | 38 |