_id	year	japanese_calendar	dids_population	dids_area	dids_population_density	whole_area_population_ratio	whole_area_ratio	citywide_population	citywide_area
1	1960	昭和35	63263	5.8	10907.4	63.6	2	99546	284.8
2	1965	昭和40	67185	6.4	10497.7	65.7	2.2	102239	286.26
3	1970	昭和45	67824	7.8	8695.4	65.2	2.7	104065	286.26
4	1975	昭和50	66667	8.6	7752	61.4	3	108650	286.26
5	1980	昭和55	81563	12.7	6422.3	71.2	4.4	114528	286.26
6	1985	昭和60	88195	13.8	6390.9	74.7	4.8	118140	286.26
7	1990	平成02	91217	14.9	6121.9	76.6	5.2	119080	286.38
8	1995	平成07	93927	16.2	5798	78.5	5.7	119640	286.38
9	2000	平成12	93305	16.3	5724.2	79	5.2	118118	315.28
10	2005	平成17	91194	16.64	5480.4	74.6	4.8	122248	343.46
11	2010	平成22	88013	16.7	5270.2	69.7	4.4	126220	383.03
12	2015	平成27	87065	16.68	5219.7	70.2	4.4	124062	382.97
13	2020	令和2	84370	18.32	4605.3	71.9	4.8	117376	382.97