. 2015 May 5;25(5):359–369. doi: 10.2188/jea.JE20140121

Table 3-2. Means and standard deviations of dependent and independent variables from 2002 and 2010.

		2002	2004	2006	2008	2010
DPT vaccination coverage	mean	92.77	92.67	95.42	96.61	96.44
DPT vaccination coverage	(SD)	(12.5)	(11.54)	(9.32)	(9.26)	(8.85)
Pediatrician density^a	mean	4.83	5.10	5.17	5.43	5.54
Pediatrician density^a	(SD)	(6.64)	(6.90)	(7.12)	(7.76)	(7.53)
Other physician density^b	mean	12.97	13.20	13.39	13.62	13.87
Other physician density^b	(SD)	(14.39)	(14.57)	(14.9)	(15.12)	(15.71)
Total population (thousand)	mean	72.76	72.97	73.10	73.11	73.11
Total population (thousand)	(SD)	(174.69)	(176.46)	(178.07)	(179.55)	(180.93)
Per capita income (thousand US$)^c	mean	11.39	10.73	11.19	11.29	10.41
Per capita income (thousand US$)^c	(SD)	(3.75)	(3.13)	(3.51)	(3.81)	(3.29)

SD, standard deviation.

^aThe number of pediatricians per 10 000 population under the age of 15.

^bThe number of physicians other than pediatricians per 10 000 population.

^cJapanese yen was converted into US$ using the rate that applied in April 2014 of approximately 105 Japanese yen per US$.