By decades of record

How many separate decades a name has been ranked in, counting a decade once however many of its years appear.

Not the same as the span between the first and last record: a name ranked in 1950 and again in 2020 and never between covers two decades, not eight. Counting decades rather than years is what separates a record that keeps reappearing from one long unbroken stretch — the run length dimension measures the second.

11,128 records across 8 bands, ordered by most decades first.

• Recorded in 2 decades

  Names ranked in exactly 2 distinct decades, across every registrar together.

  813 names

• Recorded in 3 decades

  Names ranked in exactly 3 distinct decades, across every registrar together.

  2,917 names

• Recorded in 4 decades

  Names ranked in exactly 4 distinct decades, across every registrar together.

  4,610 names

• Recorded in 5 decades

  Names ranked in exactly 5 distinct decades, across every registrar together.

  506 names

• Recorded in 6 decades

  Names ranked in exactly 6 distinct decades, across every registrar together.

  525 names

• Recorded in 7 decades

  Names ranked in exactly 7 distinct decades, across every registrar together.

  735 names

• Recorded in 8 decades

  Names ranked in exactly 8 distinct decades, across every registrar together.

  448 names

• Recorded in 9 decades

  Names ranked in exactly 9 distinct decades, across every registrar together.

  574 names