Five datasets, computed rather than collected. Every figure carries its method, its limit and the date it was measured — and a CSV, so you can check it rather than take our word for it.
These are not survey results and they are not population statistics. They are what the Human Design wheel itself produces when you compute a very large number of charts and count what comes out. That distinction is the most important thing on this page, so it travels with every figure below and inside every citation line.
Everything here is published under CC BY 4.0. Free to reuse, including commercially, with attribution to DefinedSelf. If you use a figure, the citation line under each table is the form we would like back.
Type and authority distribution
Across 10,320 charts computed on a uniform grid spanning 1940–2025, Generators and Manifesting Generators together account for 67.5% of the wheel, and Emotional authority alone for 51.3%.
category
name
percent
type
Generator
35.2
type
Manifesting Generator
32.3
type
Projector
21.2
type
Manifestor
10.3
type
Reflector
1.0
authority
Emotional
51.3
authority
Sacral
32.1
authority
Splenic
9.4
authority
Self-Projected
2.5
authority
Mental
2.2
authority
Ego
1.4
authority
Lunar
1.0
Method
Every chart on a uniform grid of 10,320 birth instants across 1940–2025 was built by the site's own engine, and its type and authority read from chart topology.
Limit
a uniform grid of birth instants, not a sample of real births — these are the proportions the wheel produces, not population statistics.
Measured
— produced by scripts/type-distribution.mts. The script is not public; the CSV below is the full output.
Cite this as
DefinedSelf (2026). Type and authority distribution. https://definedself.com/data#type-distribution — measured 2026-07-31. a uniform grid of birth instants, not a sample of real births — these are the proportions the wheel produces, not population statistics.
Among the 4,398 charts where a motor centre reaches the Throat at all, the connection is direct in only 76.8% of cases — roughly one in four routes through another centre.
route
percent
direct — motor on the other end of a single channel
76.8
via one intermediate centre
22.3
via two intermediate centres
0.9
Method
For each of the 4,398 charts in the grid where any motor centre connects to the Throat, the shortest path between them was measured in centres traversed.
Limit
a uniform grid of birth instants, not a sample of real births — these are the proportions the wheel produces, not population statistics.
Measured
— produced by scripts/type-distribution.mts. The script is not public; the CSV below is the full output.
Cite this as
DefinedSelf (2026). Motor routing to the Throat. https://definedself.com/data#motor-routing — measured 2026-07-31. a uniform grid of birth instants, not a sample of real births — these are the proportions the wheel produces, not population statistics.
Across 92,880 centre-readings, 11.8% of centres are truly open — no gates at all — while 35.5% are undefined but carry gates. 75.1% of everything commonly called "open" is in fact undefined-with-gates.
state
percent
defined
52.7
undefined (has gates, no full channel)
35.5
open (no gates at all)
11.8
Method
Each of the nine centres was classified in every chart on the grid — 92,880 centre-readings in total — as defined, undefined-with-gates, or fully open.
Limit
a uniform grid of birth instants, not a sample of real births — these are the proportions the wheel produces, not population statistics.
Measured
— produced by scripts/type-distribution.mts. The script is not public; the CSV below is the full output.
Cite this as
DefinedSelf (2026). Centre states — defined, undefined, open. https://definedself.com/data#centre-states — measured 2026-07-31. a uniform grid of birth instants, not a sample of real births — these are the proportions the wheel produces, not population statistics.
With no birth time at all, one type answer holds for the whole day in 55.3% of dates and one profile answer in 0% — profile never survives an unknown time. Knowing the hour recovers type to 97.4% and profile to 92%.
precision
type percent
authority percent
profile percent
whole day unknown
55.3
64.3
0.0
known to the hour
97.4
97.9
92.0
known to the quarter hour
98.9
99.0
96.4
assuming noon
85.3
88.4
61.9
Method
300 birth dates were each rebuilt across every clock time of the day — 86,400 charts — and the share of dates giving a single unchanging answer was counted at each level of precision.
Limit
a uniform sweep of clock times, not a distribution of real birth times — this measures what the wheel does across a day.
Measured
— produced by scripts/birth-time-unknown.mts. The script is not public; the CSV below is the full output.
Cite this as
DefinedSelf (2026). What survives an unknown birth time. https://definedself.com/data#birth-time-survival — measured 2026-07-31. a uniform sweep of clock times, not a distribution of real birth times — this measures what the wheel does across a day.
The Moon crosses one 0.9375° line every 1.7 hours and the Sun every 22.82 on average — shorter than a day, which is why an unknown birth time can never preserve a profile.
body
hours per line
Moon
1.7
Mercury
13
Sun
22.8
Mars
31
Saturn
384
Method
Measured directly from the engine's ephemeris — four years of Sun and one year of Moon positions at 1–2 minute resolution; the remaining bodies from the engine's own derived rates.
Limit
mean intervals — the Sun ranges to a maximum of 23.63 hours and the Moon from 1.37 to 1.92, so a single chart can sit either side of these figures.
Measured
— produced by the engine ephemeris + wheel. The script is not public; the CSV below is the full output.
Cite this as
DefinedSelf (2026). How fast each body crosses a line. https://definedself.com/data#line-crossing — measured 2026-07-31. mean intervals — the Sun ranges to a maximum of 23.63 hours and the Moon from 1.37 to 1.92, so a single chart can sit either side of these figures.
Each of these came out of a question the site needed answered for its own pages — how common a type really is, whether a motor reaching the throat is usually direct, what a reader can still learn without a birth time. They are published because the computation was already done and the answer is checkable, not because anyone asked for a dataset.
If you find an error, it is worth telling us: the numbers come from one engine, and one engine can be wrong in the same direction every time. That is the honest limit of everything on this page.