| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 55.5 | +3.7 | +7.15% | Jun 30, 2024 |
| Q1 2024 | 55.8 | +7.21 | +14.8% | Mar 31, 2024 |
| Q4 2023 | 54.7 | +8.73 | +19% | Dec 31, 2023 |
| Q3 2023 | 52.9 | +9.27 | +21.2% | Sep 30, 2023 |
| Q2 2023 | 51.8 | +10.7 | +26.1% | Jun 30, 2023 |
| Q1 2023 | 48.6 | +8.38 | +20.9% | Mar 31, 2023 |
| Q4 2022 | 46 | +4.89 | +11.9% | Dec 31, 2022 |
| Q3 2022 | 43.7 | +2.57 | +6.25% | Sep 30, 2022 |
| Q2 2022 | 41.1 | -0.99 | -2.35% | Jun 30, 2022 |
| Q1 2022 | 40.2 | -2.57 | -6.01% | Mar 31, 2022 |
| Q4 2021 | 41.1 | -0.63 | -1.51% | Dec 31, 2021 |
| Q3 2021 | 41.1 | +0.55 | +1.36% | Sep 30, 2021 |
| Q2 2021 | 42.1 | +4.39 | +11.7% | Jun 30, 2021 |
| Q1 2021 | 42.8 | +5.77 | +15.6% | Mar 31, 2021 |
| Q4 2020 | 41.7 | +4.31 | +11.5% | Dec 31, 2020 |
| Q3 2020 | 40.6 | +2.49 | +6.54% | Sep 30, 2020 |
| Q2 2020 | 37.7 | -0.38 | -1% | Jun 30, 2020 |
| Q1 2020 | 37 | +1.31 | +3.67% | Mar 31, 2020 |
| Q4 2019 | 37.4 | +5.13 | +15.9% | Dec 31, 2019 |
| Q3 2019 | 38.1 | +8.23 | +27.6% | Sep 30, 2019 |
| Q2 2019 | 38.1 | +9.5 | +33.3% | Jun 30, 2019 |
| Q1 2019 | 35.7 | +6.14 | +20.8% | Mar 31, 2019 |
| Q4 2018 | 32.3 | -1.53 | -4.53% | Dec 31, 2018 |
| Q3 2018 | 29.8 | -6.91 | -18.8% | Sep 30, 2018 |
| Q2 2018 | 28.6 | -8.61 | -23.2% | Jun 30, 2018 |
| Q1 2018 | 29.5 | -7.75 | -20.8% | Mar 31, 2018 |
| Q4 2017 | 33.8 | -1.65 | -4.66% | Dec 31, 2017 |
| Q3 2017 | 36.7 | +2.48 | +7.24% | Sep 30, 2017 |
| Q2 2017 | 37.2 | +2.61 | +7.55% | Jun 30, 2017 |
| Q1 2017 | 37.3 | +1.01 | +2.79% | Mar 31, 2017 |
| Q4 2016 | 35.5 | -1.44 | -3.9% | Dec 31, 2016 |
| Q3 2016 | 34.3 | -1.87 | -5.18% | Sep 30, 2016 |
| Q2 2016 | 34.6 | -0.18 | -0.52% | Jun 30, 2016 |
| Q1 2016 | 36.3 | +3.02 | +9.09% | Mar 31, 2016 |
| Q4 2015 | 36.9 | +2.4 | +6.96% | Dec 31, 2015 |
| Q3 2015 | 36.1 | -1.44 | -3.83% | Sep 30, 2015 |
| Q2 2015 | 34.7 | -7.87 | -18.5% | Jun 30, 2015 |
| Q1 2015 | 33.2 | -14.8 | -30.9% | Mar 31, 2015 |
| Q4 2014 | 34.5 | -16.3 | -32.1% | Dec 31, 2014 |
| Q3 2014 | 37.6 | -16.9 | -31% | Sep 30, 2014 |
| Q2 2014 | 42.6 | -19.3 | -31.2% | Jun 30, 2014 |
| Q1 2014 | 48.1 | -18.1 | -27.4% | Mar 31, 2014 |
| Q4 2013 | 50.8 | -18.2 | -26.4% | Dec 31, 2013 |
| Q3 2013 | 54.5 | -13.7 | -20.1% | Sep 30, 2013 |
| Q2 2013 | 61.9 | -4.35 | -6.57% | Jun 30, 2013 |
| Q1 2013 | 66.2 | +0.83 | +1.27% | Mar 31, 2013 |
| Q4 2012 | 69 | +1.55 | +2.3% | Dec 31, 2012 |
| Q3 2012 | 68.2 | -3.25 | -4.55% | Sep 30, 2012 |
| Q2 2012 | 66.3 | -7.78 | -10.5% | Jun 30, 2012 |
| Q1 2012 | 65.4 | -11.1 | -14.5% | Mar 31, 2012 |
| Q4 2011 | 67.5 | -9.57 | -12.4% | Dec 31, 2011 |
| Q3 2011 | 71.4 | Sep 30, 2011 | ||
| Q2 2011 | 74 | Jun 30, 2011 | ||
| Q1 2011 | 76.5 | Mar 31, 2011 | ||
| Q4 2010 | 77 | Dec 31, 2010 |