| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 39.7 | +5.82 | +17.2% | Jun 30, 2024 |
| Q1 2024 | 39.9 | +7.6 | +23.6% | Mar 31, 2024 |
| Q4 2023 | 39.2 | +8.06 | +25.9% | Dec 31, 2023 |
| Q3 2023 | 36.7 | +6.64 | +22.1% | Sep 30, 2023 |
| Q2 2023 | 33.8 | +4.48 | +15.3% | Jun 30, 2023 |
| Q1 2023 | 32.3 | +2.99 | +10.2% | Mar 31, 2023 |
| Q4 2022 | 31.2 | +1.8 | +6.13% | Dec 31, 2022 |
| Q3 2022 | 30 | +0.84 | +2.88% | Sep 30, 2022 |
| Q2 2022 | 29.4 | -1.35 | -4.4% | Jun 30, 2022 |
| Q1 2022 | 29.3 | -1.53 | -4.97% | Mar 31, 2022 |
| Q4 2021 | 29.4 | -2.24 | -7.09% | Dec 31, 2021 |
| Q3 2021 | 29.2 | -2.69 | -8.44% | Sep 30, 2021 |
| Q2 2021 | 30.7 | -0.56 | -1.79% | Jun 30, 2021 |
| Q1 2021 | 30.8 | -1.42 | -4.41% | Mar 31, 2021 |
| Q4 2020 | 31.6 | -0.63 | -1.96% | Dec 31, 2020 |
| Q3 2020 | 31.9 | +0.43 | +1.37% | Sep 30, 2020 |
| Q2 2020 | 31.3 | +0.89 | +2.93% | Jun 30, 2020 |
| Q1 2020 | 32.2 | +2.14 | +7.12% | Mar 31, 2020 |
| Q4 2019 | 32.2 | +3.34 | +11.6% | Dec 31, 2019 |
| Q3 2019 | 31.5 | +3.33 | +11.8% | Sep 30, 2019 |
| Q2 2019 | 30.4 | +2.24 | +7.96% | Jun 30, 2019 |
| Q1 2019 | 30.1 | +3.21 | +11.9% | Mar 31, 2019 |
| Q4 2018 | 28.9 | +2.79 | +10.7% | Dec 31, 2018 |
| Q3 2018 | 28.1 | +2.11 | +8.11% | Sep 30, 2018 |
| Q2 2018 | 28.2 | +2 | +7.65% | Jun 30, 2018 |
| Q1 2018 | 26.9 | -0.56 | -2.04% | Mar 31, 2018 |
| Q4 2017 | 26.1 | -3.62 | -12.2% | Dec 31, 2017 |
| Q3 2017 | 26 | -7.74 | -22.9% | Sep 30, 2017 |
| Q2 2017 | 26.2 | -11.4 | -30.4% | Jun 30, 2017 |
| Q1 2017 | 27.4 | -12.8 | -31.9% | Mar 31, 2017 |
| Q4 2016 | 29.7 | -12.7 | -29.9% | Dec 31, 2016 |
| Q3 2016 | 33.7 | -6.37 | -15.9% | Sep 30, 2016 |
| Q2 2016 | 37.6 | -1 | -2.59% | Jun 30, 2016 |
| Q1 2016 | 40.3 | +2.56 | +6.79% | Mar 31, 2016 |
| Q4 2015 | 42.4 | +5.96 | +16.4% | Dec 31, 2015 |
| Q3 2015 | 40.1 | +1.61 | +4.18% | Sep 30, 2015 |
| Q2 2015 | 38.6 | -1.2 | -3.02% | Jun 30, 2015 |
| Q1 2015 | 37.7 | -2.54 | -6.31% | Mar 31, 2015 |
| Q4 2014 | 36.5 | -4.83 | -11.7% | Dec 31, 2014 |
| Q3 2014 | 38.5 | -3.13 | -7.52% | Sep 30, 2014 |
| Q2 2014 | 39.8 | -1.99 | -4.76% | Jun 30, 2014 |
| Q1 2014 | 40.2 | -1.79 | -4.26% | Mar 31, 2014 |
| Q4 2013 | 41.3 | -1.06 | -2.5% | Dec 31, 2013 |
| Q3 2013 | 41.6 | -1.03 | -2.41% | Sep 30, 2013 |
| Q2 2013 | 41.8 | -2.73 | -6.13% | Jun 30, 2013 |
| Q1 2013 | 42 | -5.19 | -11% | Mar 31, 2013 |
| Q4 2012 | 42.3 | -6.77 | -13.8% | Dec 31, 2012 |
| Q3 2012 | 42.7 | -9.01 | -17.4% | Sep 30, 2012 |
| Q2 2012 | 44.5 | -7.52 | -14.5% | Jun 30, 2012 |
| Q1 2012 | 47.2 | -3.66 | -7.2% | Mar 31, 2012 |
| Q4 2011 | 49.1 | -0.35 | -0.71% | Dec 31, 2011 |
| Q3 2011 | 51.7 | Sep 30, 2011 | ||
| Q2 2011 | 52 | Jun 30, 2011 | ||
| Q1 2011 | 50.9 | Mar 31, 2011 | ||
| Q4 2010 | 49.5 | Dec 31, 2010 |