| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 41.7 | -7.83 | -15.8% | Jun 30, 2024 |
| Q1 2024 | 43.3 | -8.72 | -16.8% | Mar 31, 2024 |
| Q4 2023 | 44.8 | -9.36 | -17.3% | Dec 31, 2023 |
| Q3 2023 | 46.3 | -10.3 | -18.2% | Sep 30, 2023 |
| Q2 2023 | 49.5 | -8.26 | -14.3% | Jun 30, 2023 |
| Q1 2023 | 52 | -5.24 | -9.15% | Mar 31, 2023 |
| Q4 2022 | 54.2 | -3.87 | -6.67% | Dec 31, 2022 |
| Q3 2022 | 56.6 | -1.21 | -2.09% | Sep 30, 2022 |
| Q2 2022 | 57.8 | +0.47 | +0.82% | Jun 30, 2022 |
| Q1 2022 | 57.3 | -1.18 | -2.02% | Mar 31, 2022 |
| Q4 2021 | 58 | -0.55 | -0.94% | Dec 31, 2021 |
| Q3 2021 | 57.8 | -1.08 | -1.83% | Sep 30, 2021 |
| Q2 2021 | 57.3 | -0.59 | -1.02% | Jun 30, 2021 |
| Q1 2021 | 58.5 | +1.61 | +2.83% | Mar 31, 2021 |
| Q4 2020 | 58.6 | +2.48 | +4.42% | Dec 31, 2020 |
| Q3 2020 | 58.9 | +2.69 | +4.79% | Sep 30, 2020 |
| Q2 2020 | 57.9 | +1.11 | +1.96% | Jun 30, 2020 |
| Q1 2020 | 56.8 | +0.03 | +0.05% | Mar 31, 2020 |
| Q4 2019 | 56.1 | -0.82 | -1.44% | Dec 31, 2019 |
| Q3 2019 | 56.2 | -1.83 | -3.16% | Sep 30, 2019 |
| Q2 2019 | 56.8 | -1.83 | -3.12% | Jun 30, 2019 |
| Q1 2019 | 56.8 | -3.08 | -5.14% | Mar 31, 2019 |
| Q4 2018 | 56.9 | -4.45 | -7.25% | Dec 31, 2018 |
| Q3 2018 | 58 | -4.64 | -7.41% | Sep 30, 2018 |
| Q2 2018 | 58.6 | -7.29 | -11.1% | Jun 30, 2018 |
| Q1 2018 | 59.9 | -9.25 | -13.4% | Mar 31, 2018 |
| Q4 2017 | 61.4 | -11.6 | -15.9% | Dec 31, 2017 |
| Q3 2017 | 62.7 | -14.5 | -18.8% | Sep 30, 2017 |
| Q2 2017 | 65.9 | -16 | -19.5% | Jun 30, 2017 |
| Q1 2017 | 69.1 | -17.5 | -20.2% | Mar 31, 2017 |
| Q4 2016 | 73 | -17.9 | -19.7% | Dec 31, 2016 |
| Q3 2016 | 77.1 | -16.8 | -17.9% | Sep 30, 2016 |
| Q2 2016 | 81.9 | -14.5 | -15.1% | Jun 30, 2016 |
| Q1 2016 | 86.7 | -10.5 | -10.8% | Mar 31, 2016 |
| Q4 2015 | 90.9 | -10.3 | -10.1% | Dec 31, 2015 |
| Q3 2015 | 93.9 | -11.1 | -10.6% | Sep 30, 2015 |
| Q2 2015 | 96.5 | -13.4 | -12.2% | Jun 30, 2015 |
| Q1 2015 | 97.2 | -17.5 | -15.2% | Mar 31, 2015 |
| Q4 2014 | 101 | -14.5 | -12.6% | Dec 31, 2014 |
| Q3 2014 | 105 | -8.57 | -7.54% | Sep 30, 2014 |
| Q2 2014 | 110 | +0.33 | +0.3% | Jun 30, 2014 |
| Q1 2014 | 115 | +10.4 | +10% | Mar 31, 2014 |
| Q4 2013 | 116 | +16.1 | +16.1% | Dec 31, 2013 |
| Q3 2013 | 114 | +14.6 | +14.7% | Sep 30, 2013 |
| Q2 2013 | 109 | +10.1 | +10.1% | Jun 30, 2013 |
| Q1 2013 | 104 | -1.24 | -1.18% | Mar 31, 2013 |
| Q4 2012 | 99.6 | -9 | -8.29% | Dec 31, 2012 |
| Q3 2012 | 99.1 | -14.3 | -12.6% | Sep 30, 2012 |
| Q2 2012 | 99.4 | -19.5 | -16.4% | Jun 30, 2012 |
| Q1 2012 | 105 | -19.4 | -15.6% | Mar 31, 2012 |
| Q4 2011 | 109 | Dec 31, 2011 | ||
| Q3 2011 | 113 | Sep 30, 2011 | ||
| Q2 2011 | 119 | Jun 30, 2011 | ||
| Q1 2011 | 125 | Mar 31, 2011 |