Welcome aboard, cdmc, and thank you for an interesting question.
1. It is easy to check how rare or common your findings are by the statistics that we've compiled in the post
What is RQ (Relationship Quotient)?. Sorry for the poor design
2. There's absolutely no correlation between the proximity of your time of birth to the powerful relationship you may have. As a proof, just analyze a relationship between you and yourself. Shocked by the findings?