Time,series_level_advance
01-Oct-1987,3875.1
01-Jan-1988,3902.6
01-Apr-1988,3986.3
01-Jul-1988,4007.3
01-Oct-1988,4029.2
01-Jan-1989,4088.2
01-Apr-1989,4123.9
01-Jul-1989,4158.1
01-Oct-1989,4168.1
01-Jan-1990,4195.8
01-Apr-1990,4163.2
01-Jul-1990,4173.6
01-Oct-1990,4147.6
01-Jan-1991,4123.9
01-Apr-1991,4128.4
01-Jul-1991,4143.1
01-Oct-1991,4866.3
01-Jan-1992,4891.9
01-Apr-1992,4890.5
01-Jul-1992,4924.5
01-Oct-1992,4979.8
01-Jan-1993,5013.1
01-Apr-1993,5019.5
01-Jul-1993,5138
01-Oct-1993,5212.1
01-Jan-1994,5259
01-Apr-1994,5309.2
01-Jul-1994,5359.2
01-Oct-1994,5426.8
01-Jan-1995,5471.7
01-Apr-1995,5477.3
01-Jul-1995,5544.6
01-Oct-1995,6776.5
01-Jan-1996,6823.6
01-Apr-1996,6885.1
01-Jul-1996,6929.7
01-Oct-1996,7008.7
01-Jan-1997,7089.4
01-Apr-1997,7139.7
01-Jul-1997,7221.8
01-Oct-1997,7290.3
01-Jan-1998,7356
01-Apr-1998,7491
01-Jul-1998,7559.5
01-Oct-1998,7670
01-Jan-1999,7762.5
01-Apr-1999,7803.6
01-Jul-1999,8882.6
01-Oct-1999,9026.9
01-Jan-2000,9156.6
01-Apr-2000,9308.8
01-Jul-2000,9382.2
01-Oct-2000,9401.5
01-Jan-2001,9439.9
01-Apr-2001,9351.6
01-Jul-2001,9333.4
01-Oct-2001,9315.6
01-Jan-2002,9482.1
01-Apr-2002,9387.9
01-Jul-2002,9465.2
01-Oct-2002,9503.2
01-Jan-2003,9556
01-Apr-2003,9608.1
01-Jul-2003,9797.2
01-Oct-2003,10597.1
01-Jan-2004,10708.6
01-Apr-2004,10778
01-Jul-2004,10883.4
01-Oct-2004,10975.7
01-Jan-2005,11078.2
01-Apr-2005,11092
01-Jul-2005,11193.2
01-Oct-2005,11233.5
01-Jan-2006,11381.4
01-Apr-2006,11385.3
01-Jul-2006,11432.9
01-Oct-2006,11541.6
01-Jan-2007,11549.1
01-Apr-2007,11507.9
01-Jul-2007,11630.7
01-Oct-2007,11677.4
01-Jan-2008,11693.1
01-Apr-2008,11700.6
01-Jul-2008,11720
01-Oct-2008,11599.4
01-Jan-2009,11340.9
01-Apr-2009,12892.4
01-Jul-2009,13014
01-Oct-2009,13155
01-Jan-2010,13254.7
01-Apr-2010,13216.5
01-Jul-2010,13260.7
01-Oct-2010,13382.6
01-Jan-2011,13438.8
01-Apr-2011,13270.1
01-Jul-2011,13352.8
01-Oct-2011,13422.4
01-Jan-2012,13502.4
01-Apr-2012,13558
01-Jul-2012,13616.2
01-Oct-2012,13647.6
01-Jan-2013,13750.1
01-Apr-2013,15648.7
01-Jul-2013,15790.1
01-Oct-2013,15965.6
01-Jan-2014,15946.6
01-Apr-2014,15985.7
01-Jul-2014,16150.6
01-Oct-2014,16311.6
01-Jan-2015,16304.8
01-Apr-2015,16270.4
01-Jul-2015,16394.2
01-Oct-2015,16442.3
01-Jan-2016,16492.7
01-Apr-2016,16575.1
01-Jul-2016,16702.1
01-Oct-2016,16804.8
01-Jan-2017,16842.4
01-Apr-2017,17010.7
01-Jul-2017,17156.9
01-Oct-2017,17272.5
01-Jan-2018,17385.8
01-Apr-2018,18507.2
01-Jul-2018,18671.5
01-Oct-2018,18784.6
01-Jan-2019,18912.3
01-Apr-2019,19023.8
01-Jul-2019,19112.5
01-Oct-2019,19219.8
01-Jan-2020,18987.9
01-Apr-2020,17205.8
01-Jul-2020,18584
01-Oct-2020,18780.3
01-Jan-2021,19087.6
01-Apr-2021,19358.2
01-Jul-2021,19465.2
01-Oct-2021,19806
01-Jan-2022,19735.9
01-Apr-2022,19681.7
01-Jul-2022,20021.7
01-Oct-2022,20198.1
01-Jan-2023,20235.9
01-Apr-2023,20404.1
01-Jul-2023,22491.6
01-Oct-2023,22672.9
01-Jan-2024,22768.9
01-Apr-2024,22918.7
01-Jul-2024,23386.2
01-Oct-2024,23530.9
01-Jan-2025,23526.1
01-Apr-2025,23685.3
01-Jul-2025,24026.8
01-Oct-2025,NaN
