_id	code	acronym	validFrom	effectiveFrom	effectiveTo	year_from	year_to
1	321000001	1961-2000	2023-09-01T00:00:00	2023-09-01T00:00:00	""	1961	2000
2	321000002	1931-1980	1800-01-01T00:00:00	1800-01-01T00:00:00	""	1931	1980