Demographic Birth Frequency Matrix (366 Days)
September 19
RANK #2
Rarity Rank
#2 / 366
Top 0.5% Peak
Rarity Percentile
99.72%
Higher = More Common
Daily Birth Avg
12,280
+14.2% vs Baseline
Baseline Index
114.2
National Avg = 100
ESTIMATED CONCEPTION WINDOW (266 DAYS PRIOR)
Dec 17 - Dec 31
Mid-September births correspond to holiday season fertilization (Christmas to New Year's Eve).
Demographic Driver: High rate of planned C-sections and induced labor scheduled around autumn midweek trends.
Birthday Paradox Monte Carlo Simulation Engine
D3 Dynamic Node-Link Collision Synthesis
Theoretical Paradox Prob
50.73%
Exact mathematical odds for N=23
Simulated Monte Carlo Odds
50.73%
Based on 1,000 empirical runs
Observed Collision Links
1 Collision
Shared: Sep 19
Active Selected State Verification
Birthday Frequency Explorer: Sept 19 Rank #2
Percentile
99.72%
Conception Window
Dec 17 - Dec 31
N=23 Paradox Odds
50.73%