Fig. 1
From: Marital fertility patterns and nonmarital birth ratios: an integrated approach
The marital birth ratio, bw, from actual Eurostat data vs. the calculated marital birth ratio based off marriage and fertility data from Eurostat for the age groups of a 15–19, b 20–24, c 25–29, d 30–34, e 35–39, and f 40–44. Colors indicate data from the years of 1991 (red), 2001 (green), and 2011 (blue). All comparisons have R2 > 0.99. Data from Eurostat (2018a, b, c, d, e, f), see details in Appendix