date,value 1947-01-01,1.709 1947-04-01,1.664 1947-07-01,1.77 1947-10-01,1.749 1948-01-01,1.831 1948-04-01,1.759 1948-07-01,1.738 1948-10-01,1.909 1949-01-01,1.809 1949-04-01,1.634 1949-07-01,1.544 1949-10-01,1.525 1950-01-01,1.607 1950-04-01,1.822 1950-07-01,1.878 1950-10-01,2.056 1951-01-01,1.979 1951-04-01,2.106 1951-07-01,2.251 1951-10-01,2.261 1952-01-01,2.399 1952-04-01,2.641 1952-07-01,2.241 1952-10-01,2.439 1953-01-01,2.625 1953-04-01,2.681 1953-07-01,2.811 1953-10-01,2.547 1954-01-01,2.457 1954-04-01,2.349 1954-07-01,2.402 1954-10-01,2.488 1955-01-01,2.396 1955-04-01,2.619 1955-07-01,3.025 1955-10-01,3.232 1956-01-01,3.123 1956-04-01,3.39 1956-07-01,3.432 1956-10-01,3.476 1957-01-01,3.644 1957-04-01,3.968 1957-07-01,4.285 1957-10-01,4.031 1958-01-01,3.696 1958-04-01,3.475 1958-07-01,3.564 1958-10-01,3.691 1959-01-01,3.752 1959-04-01,3.831 1959-07-01,3.949 1959-10-01,4.363 1960-01-01,4.516 1960-04-01,4.821 1960-07-01,4.668 1960-10-01,4.965 1961-01-01,4.675 1961-04-01,5.177 1961-07-01,5.187 1961-10-01,5.337 1962-01-01,5.667 1962-04-01,5.522 1962-07-01,5.329 1962-10-01,5.424 1963-01-01,5.722 1963-04-01,6.058 1963-07-01,6.288 1963-10-01,6.312 1964-01-01,6.647 1964-04-01,6.745 1964-07-01,6.69 1964-10-01,7.212 1965-01-01,7.268 1965-04-01,7.626 1965-07-01,8.07 1965-10-01,8.395 1966-01-01,8.959 1966-04-01,9.523 1966-07-01,9.883 1966-10-01,10.244 1967-01-01,9.954 1967-04-01,10.043 1967-07-01,9.903 1967-10-01,10.512 1968-01-01,10.625 1968-04-01,10.426 1968-07-01,10.69 1968-10-01,10.643 1969-01-01,11.515 1969-04-01,12.492 1969-07-01,13.342 1969-10-01,13.939 1970-01-01,14.436 1970-04-01,14.622 1970-07-01,13.993 1970-10-01,14.215 1971-01-01,13.928 1971-04-01,14.957 1971-07-01,15.144 1971-10-01,15.672 1972-01-01,16.428 1972-04-01,16.308 1972-07-01,16.658 1972-10-01,17.309 1973-01-01,18.588 1973-04-01,19.602 1973-07-01,20.064 1973-10-01,21.184 1974-01-01,21.567 1974-04-01,21.934 1974-07-01,23.883 1974-10-01,24.894 1975-01-01,24.282 1975-04-01,23.627 1975-07-01,23.476 1975-10-01,23.638 1976-01-01,24.606 1976-04-01,26.525 1976-07-01,28.327 1976-10-01,30.589 1977-01-01,31.373 1977-04-01,33.094 1977-07-01,34.181 1977-10-01,36.106 1978-01-01,37.969 1978-04-01,41.675 1978-07-01,43.846 1978-10-01,45.878 1979-01-01,48.089 1979-04-01,48.806 1979-07-01,51.004 1979-10-01,53.496 1980-01-01,56.26 1980-04-01,57.197 1980-07-01,60.617 1980-10-01,61.665 1981-01-01,65.433 1981-04-01,67.977 1981-07-01,70.884 1981-10-01,74.181 1982-01-01,76.486 1982-04-01,73.394 1982-07-01,74.168 1982-10-01,72.825 1983-01-01,77.282 1983-04-01,81.602 1983-07-01,84.285 1983-10-01,91.564 1984-01-01,93.322 1984-04-01,99.555 1984-07-01,103.28 1984-10-01,108.553 1985-01-01,105.85 1985-04-01,107.651 1985-07-01,104.832 1985-10-01,108.014 1986-01-01,108.245 1986-04-01,110.979 1986-07-01,110.465 1986-10-01,114.904 1987-01-01,110.317 1987-04-01,110.547 1987-07-01,114.029 1987-10-01,113.876 1988-01-01,116.924 1988-04-01,120.918 1988-07-01,121.949 1988-10-01,123.232 1989-01-01,126.43 1989-04-01,131.03 1989-07-01,133.143 1989-10-01,132.267 1990-01-01,132.111 1990-04-01,129.184 1990-07-01,127.621 1990-10-01,129.348 1991-01-01,125.627 1991-04-01,127.774 1991-07-01,130.475 1991-10-01,132.939 1992-01-01,134.509 1992-04-01,140.378 1992-07-01,147.275 1992-10-01,146.106 1993-01-01,148.843 1993-04-01,149.674 1993-07-01,157.05 1993-10-01,157.746 1994-01-01,161.977 1994-04-01,164.715 1994-07-01,167.593 1994-10-01,173.554 1995-01-01,181.281 1995-04-01,189.14 1995-07-01,187.941 1995-10-01,195.109 1996-01-01,200.461 1996-04-01,202.191 1996-07-01,207.72 1996-10-01,208.299 1997-01-01,211.934 1997-04-01,218.676 1997-07-01,230.481 1997-10-01,230.087 1998-01-01,238.572 1998-04-01,240.28 1998-07-01,237.573 1998-10-01,243.998 1999-01-01,250.787 1999-04-01,262.144 1999-07-01,266.149 1999-10-01,259.955 2000-01-01,279.456 2000-04-01,293.504 2000-07-01,298.379 2000-10-01,303.843 2001-01-01,291.335 2001-04-01,269.716 2001-07-01,253.728 2001-10-01,248.938 2002-01-01,241.778 2002-04-01,237.735 2002-07-01,237.824 2002-10-01,229.604 2003-01-01,233.729 2003-04-01,235.908 2003-07-01,245.965 2003-10-01,255.085 2004-01-01,251.648 2004-04-01,256.486 2004-07-01,256.729 2004-10-01,258.359 2005-01-01,262.133 2005-04-01,263.532 2005-07-01,270.228 2005-10-01,271.967 2006-01-01,286.721 2006-04-01,284.925 2006-07-01,291.614 2006-10-01,290.69 2007-01-01,307.171 2007-04-01,308.172 2007-07-01,309.266 2007-10-01,318.985 2008-01-01,316.727 2008-04-01,316.33 2008-07-01,307.782 2008-10-01,284.329 2009-01-01,270.577 2009-04-01,266.2 2009-07-01,277.197 2009-10-01,288.471 2010-01-01,298.266 2010-04-01,305.269 2010-07-01,312.194 2010-10-01,314.326 2011-01-01,307.656 2011-04-01,314.052 2011-07-01,316.505 2011-10-01,315.026 2012-01-01,330.985 2012-04-01,333.584 2012-07-01,325.893 2012-10-01,334.479 2013-01-01,346.48 2013-04-01,342.3 2013-07-01,344.613 2013-10-01,345.663 2014-01-01,344.916 2014-04-01,355.209 2014-07-01,351.435 2014-10-01,357.108 2015-01-01,357.025 2015-04-01,360.9 2015-07-01,365.773 2015-10-01,365.281 2016-01-01,364.557 2016-04-01,364.166 2016-07-01,364.644 2016-10-01,367.493 2017-01-01,371.971 2017-04-01,384.401 2017-07-01,387.867 2017-10-01,399.61 2018-01-01,407.517 2018-04-01,405.529 2018-07-01,408.926 2018-10-01,404.532 2019-01-01,409.105 2019-04-01,413.098 2019-07-01,403.601 2019-10-01,395.667 2020-01-01,377.519 2020-04-01,387.054 2020-07-01,413.309 2020-10-01,422.868 2021-01-01,435.451 2021-04-01,439.448 2021-07-01,435.782 2021-10-01,462.79 2022-01-01,481.03 2022-04-01,478.822 2022-07-01,488.49 2022-10-01,474.99 2023-01-01,478.127 2023-04-01,475.146 2023-07-01,476.813 2023-10-01,492.319 2024-01-01,489.65 2024-04-01,503.399 2024-07-01,532.687 2024-10-01,530.492 2025-01-01,597.127 2025-04-01,630.152 2025-07-01,663.284 2025-10-01,720.051 2026-01-01,795.551 2026-04-01,836.42