N	Gender (female)		Age
		n	%	Mean	Median	Standard deviation
Total	1 288 713	621 686	48.2	44.8	45.0	12.4
Age category
20-29	169 523	77 464	45.7	24.8	25.0	2.93
30-39	269 661	136 797	50.7	34.8	35.0	2.86
40-49	367 693	188 766	51.3	44.5	45.0	2.83
50-59	312 017	145 084	46.5	54.2	54.0	2.81
60-69	153 125	65 269	42.6	63.3	63.0	2.59
≥70	16 694	8306	49.8	72.0	72.0	1.51
Eichner classification
A1	697 045	342 208	49.1	40.1	40.0	11.1
A2	218 918	103 497	47.3	48.0	49.0	10.9
A3	106 898	56 408	52.8	48.9	50.0	11.4
B1	65 970	29 365	44.5	54.8	56.0	9.4
B2	31 642	13 904	43.9	57.1	59.0	9.2
B3	16 230	7233	44.6	58.7	60.0	8.7
B4	9961	4501	45.2	59.0	61.0	10.1
C1	3367	1489	44.2	58.8	61.0	9.9
C2	134 732	61 656	45.8	50.0	51.0	11.9
C3	3950	1425	36.1	55.5	56.0	9.3
Miyachi classification
Area I	1 057 833	517 697	48.9	43.1	43.0	11.9
Area II	72 694	32 584	44.8	56.6	58.0	9.3
Area III	13 925	5 919	42.5	58.6	60.0	9.5
Area IV	144 261	65 486	45.4	50.5	52.0	11.9