| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 67 | +7.66 | +12.9% | Jun 30, 2024 |
| Q1 2024 | 64.9 | +5.94 | +10.1% | Mar 31, 2024 |
| Q4 2023 | 62.4 | +3.35 | +5.67% | Dec 31, 2023 |
| Q3 2023 | 61.3 | +2.32 | +3.93% | Sep 30, 2023 |
| Q2 2023 | 59.4 | -0.55 | -0.92% | Jun 30, 2023 |
| Q1 2023 | 59 | +0.38 | +0.65% | Mar 31, 2023 |
| Q4 2022 | 59.1 | +1.55 | +2.7% | Dec 31, 2022 |
| Q3 2022 | 59 | +2.89 | +5.15% | Sep 30, 2022 |
| Q2 2022 | 59.9 | +3.9 | +6.96% | Jun 30, 2022 |
| Q1 2022 | 58.6 | +0.87 | +1.51% | Mar 31, 2022 |
| Q4 2021 | 57.5 | +0.45 | +0.79% | Dec 31, 2021 |
| Q3 2021 | 56.1 | -0.1 | -0.18% | Sep 30, 2021 |
| Q2 2021 | 56 | +0.63 | +1.14% | Jun 30, 2021 |
| Q1 2021 | 57.8 | +2.55 | +4.62% | Mar 31, 2021 |
| Q4 2020 | 57.1 | +0.7 | +1.24% | Dec 31, 2020 |
| Q3 2020 | 56.2 | -2.28 | -3.9% | Sep 30, 2020 |
| Q2 2020 | 55.4 | -8.16 | -12.8% | Jun 30, 2020 |
| Q1 2020 | 55.2 | -10.7 | -16.2% | Mar 31, 2020 |
| Q4 2019 | 56.4 | -12.5 | -18.1% | Dec 31, 2019 |
| Q3 2019 | 58.5 | -13.3 | -18.5% | Sep 30, 2019 |
| Q2 2019 | 63.6 | -7.31 | -10.3% | Jun 30, 2019 |
| Q1 2019 | 65.9 | -5.33 | -7.49% | Mar 31, 2019 |
| Q4 2018 | 68.8 | -1.97 | -2.78% | Dec 31, 2018 |
| Q3 2018 | 71.8 | -0.01 | -0.01% | Sep 30, 2018 |
| Q2 2018 | 70.9 | -2.09 | -2.87% | Jun 30, 2018 |
| Q1 2018 | 71.2 | -1.38 | -1.9% | Mar 31, 2018 |
| Q4 2017 | 70.8 | -2.25 | -3.08% | Dec 31, 2017 |
| Q3 2017 | 71.8 | -1.72 | -2.34% | Sep 30, 2017 |
| Q2 2017 | 72.9 | -1.48 | -1.99% | Jun 30, 2017 |
| Q1 2017 | 72.6 | -4.26 | -5.54% | Mar 31, 2017 |
| Q4 2016 | 73.1 | -6.1 | -7.71% | Dec 31, 2016 |
| Q3 2016 | 73.5 | -7.31 | -9.05% | Sep 30, 2016 |
| Q2 2016 | 74.4 | -4.72 | -5.96% | Jun 30, 2016 |
| Q1 2016 | 76.8 | +0.11 | +0.14% | Mar 31, 2016 |
| Q4 2015 | 79.2 | +8.59 | +12.2% | Dec 31, 2015 |
| Q3 2015 | 80.8 | +21.7 | +36.8% | Sep 30, 2015 |
| Q2 2015 | 79.2 | +27.5 | +53.2% | Jun 30, 2015 |
| Q1 2015 | 76.7 | +30.4 | +65.6% | Mar 31, 2015 |
| Q4 2014 | 70.6 | +24.4 | +52.9% | Dec 31, 2014 |
| Q3 2014 | 59.1 | +9.3 | +18.7% | Sep 30, 2014 |
| Q2 2014 | 51.7 | +1.28 | +2.54% | Jun 30, 2014 |
| Q1 2014 | 46.3 | -7.56 | -14% | Mar 31, 2014 |
| Q4 2013 | 46.2 | -3.26 | -6.6% | Dec 31, 2013 |
| Q3 2013 | 49.8 | +5.29 | +11.9% | Sep 30, 2013 |
| Q2 2013 | 50.4 | +4.38 | +9.52% | Jun 30, 2013 |
| Q1 2013 | 53.9 | +9.47 | +21.3% | Mar 31, 2013 |
| Q4 2012 | 49.4 | +3.24 | +7.02% | Dec 31, 2012 |
| Q3 2012 | 44.5 | -4.38 | -8.96% | Sep 30, 2012 |
| Q2 2012 | 46 | -2.25 | -4.66% | Jun 30, 2012 |
| Q1 2012 | 44.4 | -3.86 | -8% | Mar 31, 2012 |
| Q4 2011 | 46.2 | Dec 31, 2011 | ||
| Q3 2011 | 48.9 | Sep 30, 2011 | ||
| Q2 2011 | 48.3 | Jun 30, 2011 | ||
| Q1 2011 | 48.3 | Mar 31, 2011 |