Table 1.

Descriptive statistics of economic variables in Japan

Economic variable	Mean (SD)	Median (range)
Prefecture level*:
Median prefecture income (million yen)	3.02 (0.52)	3.13 (1.80-4.04)
Gini coefficient	0.36 (0.03)	0.36 (0.31-0.45)
Individual level†:
Sample household income, adjusted for household size (million yen)	4.08 (0.33)	3.48 (0.05-83.00)

^*Estimated from original data (n=103 040). 

^†Based on sample used in analysis (n=80 899).