Table 1. Summary Statistics of Country Level Covariates .

Year of JEE	No. (%)
2016	19 (32.2%)
2017	23 (40.0%)
2018	17 (28.8%)
WHO Region	No. (%)
AFRO	31 (52.4%)
EMRO	8 (13.6%)
EURO	6 (10.2%)
SEARO	8 (13.6%)
WPRO	6 (10.2%)
Population (millions)	Median (Q1, Q3)
Concurrent year	12.3 (3.0, 32.1)
GDP (billions, USD)	Median (Q1, Q3)
Concurrent year	18.6 (9.3, 50.2)

Abbreviations: JEE, Joint External Evaluation; GDP, gross domestic product.

Year and region are summarized with counts (percentages) while the concurrent year population and GDP are summarized with the median (Q1, Q3).