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Estimation of Average Direct Relatives depending upon average 2022 world fertility rate (2.27)
| First degree | Second degree | Third degree | |
|---|---|---|---|
| parents | 2 | ||
| child | 2.27a | ||
| siblings | 1.27 | ||
| grand-parents | 4 | ||
| grandchild | 10.31 | ||
| aunt-uncle | 2.82 | ||
| niece-nephew | 6.41 | ||
| gt-granparents | 8 | ||
| gt-grandchildren | 46.79 | ||
| gt-uncles/aunts | 5.08 | ||
| first cousins | 8.04 | ||
| Total Relatives | 5.54 | 23.54 | 67.90 |
aHistorical world high fertility rate [67]
