| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 61.5 | +0.07 | +0.11% | Jun 30, 2024 |
| Q1 2024 | 60.3 | -0.44 | -0.73% | Mar 31, 2024 |
| Q4 2023 | 61.9 | -0.39 | -0.63% | Dec 31, 2023 |
| Q3 2023 | 61.1 | -1.25 | -2% | Sep 30, 2023 |
| Q2 2023 | 61.4 | +0.88 | +1.45% | Jun 30, 2023 |
| Q1 2023 | 60.7 | +0.5 | +0.83% | Mar 31, 2023 |
| Q4 2022 | 62.3 | +6.12 | +10.9% | Dec 31, 2022 |
| Q3 2022 | 62.4 | +2.13 | +3.54% | Sep 30, 2022 |
| Q2 2022 | 60.5 | -2.85 | -4.5% | Jun 30, 2022 |
| Q1 2022 | 60.2 | -11.1 | -15.5% | Mar 31, 2022 |
| Q4 2021 | 56.1 | -14.8 | -20.9% | Dec 31, 2021 |
| Q3 2021 | 60.3 | -1.88 | -3.03% | Sep 30, 2021 |
| Q2 2021 | 63.4 | +7.07 | +12.6% | Jun 30, 2021 |
| Q1 2021 | 71.2 | +20.5 | +40.3% | Mar 31, 2021 |
| Q4 2020 | 71 | +21 | +42.1% | Dec 31, 2020 |
| Q3 2020 | 62.2 | +10.6 | +20.7% | Sep 30, 2020 |
| Q2 2020 | 56.3 | +0.54 | +0.97% | Jun 30, 2020 |
| Q1 2020 | 50.8 | -7.7 | -13.2% | Mar 31, 2020 |
| Q4 2019 | 49.9 | -2.82 | -5.35% | Dec 31, 2019 |
| Q3 2019 | 51.5 | +0.83 | +1.64% | Sep 30, 2019 |
| Q2 2019 | 55.8 | +9.89 | +21.6% | Jun 30, 2019 |
| Q1 2019 | 58.5 | +12.2 | +26.2% | Mar 31, 2019 |
| Q4 2018 | 52.8 | -0.99 | -1.84% | Dec 31, 2018 |
| Q3 2018 | 50.7 | -13.1 | -20.6% | Sep 30, 2018 |
| Q2 2018 | 45.9 | -23.4 | -33.8% | Jun 30, 2018 |
| Q1 2018 | 46.3 | -18.5 | -28.5% | Mar 31, 2018 |
| Q4 2017 | 53.8 | -9.18 | -14.6% | Dec 31, 2017 |
| Q3 2017 | 63.8 | +4.06 | +6.8% | Sep 30, 2017 |
| Q2 2017 | 69.3 | +2.56 | +3.84% | Jun 30, 2017 |
| Q1 2017 | 64.8 | -14.6 | -18.4% | Mar 31, 2017 |
| Q4 2016 | 62.9 | -25.8 | -29.1% | Dec 31, 2016 |
| Q3 2016 | 59.7 | -37.1 | -38.3% | Sep 30, 2016 |
| Q2 2016 | 66.8 | -13 | -16.3% | Jun 30, 2016 |
| Q1 2016 | 79.5 | +10.7 | +15.5% | Mar 31, 2016 |
| Q4 2015 | 88.7 | +23.6 | +36.3% | Dec 31, 2015 |
| Q3 2015 | 96.9 | +34.6 | +55.5% | Sep 30, 2015 |
| Q2 2015 | 79.7 | +11.2 | +16.4% | Jun 30, 2015 |
| Q1 2015 | 68.8 | -6.51 | -8.65% | Mar 31, 2015 |
| Q4 2014 | 65.1 | -14.5 | -18.2% | Dec 31, 2014 |
| Q3 2014 | 62.3 | -24.7 | -28.4% | Sep 30, 2014 |
| Q2 2014 | 68.5 | -24.4 | -26.3% | Jun 30, 2014 |
| Q1 2014 | 75.3 | -21 | -21.8% | Mar 31, 2014 |
| Q4 2013 | 79.5 | -21.2 | -21.1% | Dec 31, 2013 |
| Q3 2013 | 87 | -15 | -14.7% | Sep 30, 2013 |
| Q2 2013 | 92.9 | -11.8 | -11.3% | Jun 30, 2013 |
| Q1 2013 | 96.3 | -13.6 | -12.4% | Mar 31, 2013 |
| Q4 2012 | 101 | -15.2 | -13.1% | Dec 31, 2012 |
| Q3 2012 | 102 | -20.5 | -16.8% | Sep 30, 2012 |
| Q2 2012 | 105 | -28.1 | -21.2% | Jun 30, 2012 |
| Q1 2012 | 110 | -26 | -19.1% | Mar 31, 2012 |
| Q4 2011 | 116 | Dec 31, 2011 | ||
| Q3 2011 | 122 | Sep 30, 2011 | ||
| Q2 2011 | 133 | Jun 30, 2011 | ||
| Q1 2011 | 136 | Mar 31, 2011 |