| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 36 | +0.21 | +0.59% | Sep 30, 2024 |
| Q2 2024 | 35 | -3.01 | -7.92% | Jun 30, 2024 |
| Q1 2024 | 34.4 | -5.65 | -14.1% | Mar 31, 2024 |
| Q4 2023 | 35 | -4.56 | -11.5% | Dec 31, 2023 |
| Q3 2023 | 35.8 | -2.54 | -6.63% | Sep 30, 2023 |
| Q2 2023 | 38 | +1.44 | +3.94% | Jun 30, 2023 |
| Q1 2023 | 40.1 | +5.49 | +15.9% | Mar 31, 2023 |
| Q4 2022 | 39.6 | +6.76 | +20.6% | Dec 31, 2022 |
| Q3 2022 | 38.3 | +6.6 | +20.8% | Sep 30, 2022 |
| Q2 2022 | 36.6 | +7.59 | +26.2% | Jun 30, 2022 |
| Q1 2022 | 34.6 | +7.09 | +25.8% | Mar 31, 2022 |
| Q4 2021 | 32.8 | +5.59 | +20.5% | Dec 31, 2021 |
| Q3 2021 | 31.7 | +3.75 | +13.4% | Sep 30, 2021 |
| Q2 2021 | 29 | -1.53 | -5.02% | Jun 30, 2021 |
| Q1 2021 | 27.5 | -3.45 | -11.2% | Mar 31, 2021 |
| Q4 2020 | 27.2 | -3.74 | -12.1% | Dec 31, 2020 |
| Q3 2020 | 28 | -1.87 | -6.27% | Sep 30, 2020 |
| Q2 2020 | 30.5 | +1.57 | +5.43% | Jun 30, 2020 |
| Q1 2020 | 30.9 | +1.23 | +4.14% | Mar 31, 2020 |
| Q4 2019 | 31 | -0.5 | -1.59% | Dec 31, 2019 |
| Q3 2019 | 29.8 | -3.91 | -11.6% | Sep 30, 2019 |
| Q2 2019 | 28.9 | -6.16 | -17.6% | Jun 30, 2019 |
| Q1 2019 | 29.7 | -6.02 | -16.9% | Mar 31, 2019 |
| Q4 2018 | 31.5 | -4.46 | -12.4% | Dec 31, 2018 |
| Q3 2018 | 33.8 | -2.01 | -5.62% | Sep 30, 2018 |
| Q2 2018 | 35.1 | -1.26 | -3.47% | Jun 30, 2018 |
| Q1 2018 | 35.7 | -1.14 | -3.09% | Mar 31, 2018 |
| Q4 2017 | 35.9 | -0.19 | -0.53% | Dec 31, 2017 |
| Q3 2017 | 35.8 | -0.27 | -0.75% | Sep 30, 2017 |
| Q2 2017 | 36.4 | +0.58 | +1.62% | Jun 30, 2017 |
| Q1 2017 | 36.9 | +0.65 | +1.8% | Mar 31, 2017 |
| Q4 2016 | 36.1 | -1.28 | -3.42% | Dec 31, 2016 |
| Q3 2016 | 36 | -0.99 | -2.68% | Sep 30, 2016 |
| Q2 2016 | 35.8 | -2.74 | -7.12% | Jun 30, 2016 |
| Q1 2016 | 36.2 | -3.61 | -9.07% | Mar 31, 2016 |
| Q4 2015 | 37.4 | -2.54 | -6.36% | Dec 31, 2015 |
| Q3 2015 | 37 | -4.14 | -10.1% | Sep 30, 2015 |
| Q2 2015 | 38.5 | -2.01 | -4.96% | Jun 30, 2015 |
| Q1 2015 | 39.8 | +0.65 | +1.66% | Mar 31, 2015 |
| Q4 2014 | 40 | +0.16 | +0.4% | Dec 31, 2014 |
| Q3 2014 | 41.2 | +1.13 | +2.82% | Sep 30, 2014 |
| Q2 2014 | 40.5 | +0.26 | +0.65% | Jun 30, 2014 |
| Q1 2014 | 39.2 | -1.69 | -4.14% | Mar 31, 2014 |
| Q4 2013 | 39.8 | -0.08 | -0.2% | Dec 31, 2013 |
| Q3 2013 | 40 | -0.18 | -0.45% | Sep 30, 2013 |
| Q2 2013 | 40.3 | -1.19 | -2.87% | Jun 30, 2013 |
| Q1 2013 | 40.9 | -1.19 | -2.83% | Mar 31, 2013 |
| Q4 2012 | 39.9 | -4.42 | -9.98% | Dec 31, 2012 |
| Q3 2012 | 40.2 | -6.08 | -13.1% | Sep 30, 2012 |
| Q2 2012 | 41.5 | -5.57 | -11.8% | Jun 30, 2012 |
| Q1 2012 | 42 | -5.22 | -11% | Mar 31, 2012 |
| Q4 2011 | 44.3 | Dec 31, 2011 | ||
| Q3 2011 | 46.3 | Sep 30, 2011 | ||
| Q2 2011 | 47 | Jun 30, 2011 | ||
| Q1 2011 | 47.3 | Mar 31, 2011 |