| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| significant events in 2007 | 1.79 | 0.7 | 1433 | 20 | 26 |
| significant | 2 | 0.3 | 8004 | 88 | 11 |
| events | 1.9 | 0.6 | 157 | 72 | 6 |
| in | 0.15 | 0.9 | 3944 | 1 | 2 |
| 2007 | 0.34 | 0.4 | 8465 | 31 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| significant events in 2007 | 1.29 | 0.8 | 3453 | 9 |
| significant events in 2010 | 1.23 | 0.6 | 3858 | 69 |
| significant events in 2004 | 0.12 | 0.3 | 7922 | 77 |
| significant events in 2006 | 1.01 | 0.9 | 1830 | 16 |
| significant events in 2008 | 1.34 | 0.4 | 5605 | 63 |
| significant events in 2009 | 1.06 | 0.8 | 1559 | 99 |
| significant events in 2000 | 0.06 | 0.1 | 8794 | 74 |
| significant events in 2003 | 1.85 | 0.3 | 438 | 19 |
| significant events in 2017 | 0.21 | 0.3 | 1395 | 24 |
| significant events in 2002 | 0.67 | 0.4 | 7004 | 87 |
| significant events in 2001 | 1.04 | 0.7 | 2801 | 16 |
| significant events in 2005 | 1.78 | 0.8 | 8020 | 30 |
| significant events that happened in 2007 | 1.88 | 0.6 | 4039 | 26 |
| significant space science event in 2007 | 1.62 | 0.2 | 5552 | 21 |
