| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 22 | -2.49 | -10.2% | Jun 30, 2024 |
| Q1 2024 | 24.3 | -1.19 | -4.67% | Mar 31, 2024 |
| Q4 2023 | 26.1 | +0.56 | +2.19% | Dec 31, 2023 |
| Q3 2023 | 23.8 | -5.09 | -17.6% | Sep 30, 2023 |
| Q2 2023 | 24.5 | -3.73 | -13.2% | Jun 30, 2023 |
| Q1 2023 | 25.5 | -1.01 | -3.82% | Mar 31, 2023 |
| Q4 2022 | 25.5 | -0.84 | -3.18% | Dec 31, 2022 |
| Q3 2022 | 28.9 | +2.11 | +7.89% | Sep 30, 2022 |
| Q2 2022 | 28.2 | +0.2 | +0.71% | Jun 30, 2022 |
| Q1 2022 | 26.5 | -4.68 | -15% | Mar 31, 2022 |
| Q4 2021 | 26.4 | -5.36 | -16.9% | Dec 31, 2021 |
| Q3 2021 | 26.8 | -5.42 | -16.9% | Sep 30, 2021 |
| Q2 2021 | 28 | -5.12 | -15.4% | Jun 30, 2021 |
| Q1 2021 | 31.1 | -2.88 | -8.46% | Mar 31, 2021 |
| Q4 2020 | 31.7 | -3.7 | -10.4% | Dec 31, 2020 |
| Q3 2020 | 32.2 | -4.48 | -12.2% | Sep 30, 2020 |
| Q2 2020 | 33.2 | -5.46 | -14.1% | Jun 30, 2020 |
| Q1 2020 | 34 | -6.2 | -15.4% | Mar 31, 2020 |
| Q4 2019 | 35.4 | -6.84 | -16.2% | Dec 31, 2019 |
| Q3 2019 | 36.7 | -7.47 | -16.9% | Sep 30, 2019 |
| Q2 2019 | 38.6 | -4.06 | -9.51% | Jun 30, 2019 |
| Q1 2019 | 40.2 | -1 | -2.43% | Mar 31, 2019 |
| Q4 2018 | 42.3 | +2.9 | +7.36% | Dec 31, 2018 |
| Q3 2018 | 44.1 | +6.08 | +16% | Sep 30, 2018 |
| Q2 2018 | 42.7 | +5.01 | +13.3% | Jun 30, 2018 |
| Q1 2018 | 41.2 | +3.9 | +10.4% | Mar 31, 2018 |
| Q4 2017 | 39.4 | +2.17 | +5.83% | Dec 31, 2017 |
| Q3 2017 | 38 | +0.67 | +1.79% | Sep 30, 2017 |
| Q2 2017 | 37.7 | +0.23 | +0.61% | Jun 30, 2017 |
| Q1 2017 | 37.3 | +0.12 | +0.32% | Mar 31, 2017 |
| Q4 2016 | 37.2 | +0.84 | +2.31% | Dec 31, 2016 |
| Q3 2016 | 37.4 | +2.01 | +5.68% | Sep 30, 2016 |
| Q2 2016 | 37.4 | +2.09 | +5.92% | Jun 30, 2016 |
| Q1 2016 | 37.2 | +0.85 | +2.34% | Mar 31, 2016 |
| Q4 2015 | 36.4 | -1.86 | -4.87% | Dec 31, 2015 |
| Q3 2015 | 35.4 | -5.32 | -13.1% | Sep 30, 2015 |
| Q2 2015 | 35.3 | -7.56 | -17.6% | Jun 30, 2015 |
| Q1 2015 | 36.4 | -7.44 | -17% | Mar 31, 2015 |
| Q4 2014 | 38.2 | -6.98 | -15.4% | Dec 31, 2014 |
| Q3 2014 | 40.7 | -5.5 | -11.9% | Sep 30, 2014 |
| Q2 2014 | 42.9 | -3.2 | -6.94% | Jun 30, 2014 |
| Q1 2014 | 43.8 | -3.18 | -6.77% | Mar 31, 2014 |
| Q4 2013 | 45.2 | -2.26 | -4.76% | Dec 31, 2013 |
| Q3 2013 | 46.2 | -2.25 | -4.65% | Sep 30, 2013 |
| Q2 2013 | 46.1 | -3.4 | -6.87% | Jun 30, 2013 |
| Q1 2013 | 47 | -3.68 | -7.26% | Mar 31, 2013 |
| Q4 2012 | 47.5 | -4.44 | -8.55% | Dec 31, 2012 |
| Q3 2012 | 48.4 | -4.15 | -7.89% | Sep 30, 2012 |
| Q2 2012 | 49.5 | -4.05 | -7.56% | Jun 30, 2012 |
| Q1 2012 | 50.7 | -2.85 | -5.33% | Mar 31, 2012 |
| Q4 2011 | 51.9 | Dec 31, 2011 | ||
| Q3 2011 | 52.6 | Sep 30, 2011 | ||
| Q2 2011 | 53.6 | Jun 30, 2011 | ||
| Q1 2011 | 53.5 | Mar 31, 2011 |