| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| population of china in 1550s | 0.59 | 0.7 | 5332 | 53 | 28 |
| population | 1.35 | 0.1 | 6538 | 32 | 10 |
| of | 0.42 | 0.9 | 2178 | 5 | 2 |
| china | 1.98 | 0.7 | 3609 | 80 | 5 |
| in | 1.08 | 0.6 | 1105 | 60 | 2 |
| 1550s | 0.55 | 1 | 4932 | 93 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| population of china in 1550s | 1.45 | 0.8 | 3099 | 93 |
| population of china in 1556 | 1.9 | 0.8 | 1221 | 56 |
| population of china in 1500 | 0.66 | 0.1 | 6794 | 37 |
| history of population in china | 0.17 | 0.2 | 640 | 88 |
| historical population of china | 1.52 | 0.4 | 9216 | 31 |
| historic population of china | 0.21 | 1 | 1688 | 94 |
| population of china in 1700 | 0.49 | 0.2 | 3741 | 36 |
| what was the population in ancient china | 1.03 | 0.3 | 5739 | 22 |
| population in early modern china | 0.14 | 0.7 | 6896 | 37 |
| population of china historically | 0.36 | 0.9 | 8102 | 48 |
| population of china in 1800 | 1.94 | 0.2 | 3926 | 7 |
| population of china in 1900 | 0.03 | 0.8 | 2322 | 59 |
| what was the world population in 1550 | 0.29 | 1 | 971 | 59 |
| in 1900 china's population was | 1.75 | 0.5 | 2944 | 58 |
