observation_date,A2001C1A027NBEA
1929-01-01,11.312
1930-01-01,9.055
1931-01-01,6.381
1932-01-01,4.748
1933-01-01,5.237
1934-01-01,6.202
1935-01-01,7.090
1936-01-01,8.466
1937-01-01,8.756
1938-01-01,7.409
1939-01-01,8.088
1940-01-01,8.172
1941-01-01,11.144
1942-01-01,15.396
1943-01-01,19.793
1944-01-01,20.446
1945-01-01,22.076
1946-01-01,25.025
1947-01-01,29.601
1948-01-01,29.219
1949-01-01,27.408
1950-01-01,29.223
1951-01-01,33.065
1952-01-01,32.070
1953-01-01,29.402
1954-01-01,30.076
1955-01-01,30.374
1956-01-01,30.831
1957-01-01,30.068
1958-01-01,32.041
1959-01-01,35.090
1960-01-01,33.786
1961-01-01,34.501
1962-01-01,36.279
1963-01-01,37.512
1964-01-01,37.668
1965-01-01,39.566
1966-01-01,43.888
1967-01-01,42.592
1968-01-01,42.907
1969-01-01,48.191
1970-01-01,51.302
1971-01-01,52.424
1972-01-01,61.581
1973-01-01,87.908
1974-01-01,92.774
1975-01-01,88.897
1976-01-01,94.696
1977-01-01,92.677
1978-01-01,113.313
1979-01-01,133.416
1980-01-01,140.267
1981-01-01,139.607
1982-01-01,135.277
1983-01-01,140.186
1984-01-01,144.605
1985-01-01,136.348
1986-01-01,135.295
1987-01-01,147.599
1988-01-01,159.414
1989-01-01,166.110
1990-01-01,171.935
1991-01-01,170.620
1992-01-01,172.343
1993-01-01,182.359
1994-01-01,181.111
1995-01-01,194.257
1996-01-01,201.510
1997-01-01,208.708
1998-01-01,198.104
1999-01-01,191.785
2000-01-01,197.589
2001-01-01,201.873
2002-01-01,195.768
2003-01-01,215.516
2004-01-01,240.172
2005-01-01,241.431
2006-01-01,245.492
2007-01-01,289.969
2008-01-01,315.139
2009-01-01,292.043
2010-01-01,321.651
2011-01-01,366.308
2012-01-01,401.929
2013-01-01,404.086
2014-01-01,423.971
2015-01-01,380.926
2016-01-01,365.623
2017-01-01,380.920
2018-01-01,385.329
2019-01-01,385.319
2020-01-01,384.361
2021-01-01,460.721
2022-01-01,564.037
2023-01-01,540.399
2024-01-01,540.794