| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q1 2024 | 58.2 | -4.66 | -7.42% | Mar 31, 2024 |
| Q4 2023 | 61 | -2.64 | -4.15% | Dec 31, 2023 |
| Q3 2023 | 65.5 | +3.63 | +5.86% | Sep 30, 2023 |
| Q2 2023 | 65.8 | +5.12 | +8.44% | Jun 30, 2023 |
| Q1 2023 | 62.8 | +2.07 | +3.41% | Mar 31, 2023 |
| Q4 2022 | 63.7 | +6.47 | +11.3% | Dec 31, 2022 |
| Q3 2022 | 61.9 | +9.01 | +17% | Sep 30, 2022 |
| Q2 2022 | 60.7 | +8.23 | +15.7% | Jun 30, 2022 |
| Q1 2022 | 60.8 | +7.18 | +13.4% | Mar 31, 2022 |
| Q4 2021 | 57.2 | +3.45 | +6.42% | Dec 31, 2021 |
| Q3 2021 | 52.9 | -3.47 | -6.16% | Sep 30, 2021 |
| Q2 2021 | 52.4 | -2.6 | -4.72% | Jun 30, 2021 |
| Q1 2021 | 53.6 | -1.54 | -2.79% | Mar 31, 2021 |
| Q4 2020 | 53.7 | +0.35 | +0.66% | Dec 31, 2020 |
| Q3 2020 | 56.4 | +3.12 | +5.86% | Sep 30, 2020 |
| Q2 2020 | 55 | +3.49 | +6.77% | Jun 30, 2020 |
| Q1 2020 | 55.1 | +7.55 | +15.9% | Mar 31, 2020 |
| Q4 2019 | 53.4 | +4.99 | +10.3% | Dec 31, 2019 |
| Q3 2019 | 53.3 | +9.64 | +22.1% | Sep 30, 2019 |
| Q2 2019 | 51.6 | +4.2 | +8.87% | Jun 30, 2019 |
| Q1 2019 | 47.6 | -2.74 | -5.45% | Mar 31, 2019 |
| Q4 2018 | 48.4 | -2.96 | -5.76% | Dec 31, 2018 |
| Q3 2018 | 43.6 | -12 | -21.6% | Sep 30, 2018 |
| Q2 2018 | 47.4 | -8.05 | -14.5% | Jun 30, 2018 |
| Q1 2018 | 50.3 | -8.6 | -14.6% | Mar 31, 2018 |
| Q4 2017 | 51.4 | -5.17 | -9.15% | Dec 31, 2017 |
| Q3 2017 | 55.6 | -0.19 | -0.34% | Sep 30, 2017 |
| Q2 2017 | 55.4 | +4.01 | +7.8% | Jun 30, 2017 |
| Q1 2017 | 58.9 | +19.2 | +48.4% | Mar 31, 2017 |
| Q4 2016 | 56.5 | +16.3 | +40.6% | Dec 31, 2016 |
| Q3 2016 | 55.8 | +15.3 | +37.7% | Sep 30, 2016 |
| Q2 2016 | 51.4 | +12.4 | +31.8% | Jun 30, 2016 |
| Q1 2016 | 39.7 | +0.71 | +1.82% | Mar 31, 2016 |
| Q4 2015 | 40.2 | -0.65 | -1.59% | Dec 31, 2015 |
| Q3 2015 | 40.5 | -1.59 | -3.78% | Sep 30, 2015 |
| Q2 2015 | 39 | -8.38 | -17.7% | Jun 30, 2015 |
| Q1 2015 | 39 | -10.6 | -21.3% | Mar 31, 2015 |
| Q4 2014 | 40.9 | -8.01 | -16.4% | Dec 31, 2014 |
| Q3 2014 | 42.1 | -7.19 | -14.6% | Sep 30, 2014 |
| Q2 2014 | 47.4 | +2.87 | +6.45% | Jun 30, 2014 |
| Q1 2014 | 49.6 | +8.83 | +21.7% | Mar 31, 2014 |
| Q4 2013 | 48.9 | +7.83 | +19.1% | Dec 31, 2013 |
| Q3 2013 | 49.3 | +8.69 | +21.4% | Sep 30, 2013 |
| Q2 2013 | 44.5 | +1.26 | +2.91% | Jun 30, 2013 |
| Q1 2013 | 40.7 | -5.43 | -11.8% | Mar 31, 2013 |
| Q4 2012 | 41 | -3.27 | -7.38% | Dec 31, 2012 |
| Q3 2012 | 40.6 | -3.69 | -8.33% | Sep 30, 2012 |
| Q2 2012 | 43.2 | +0.12 | +0.28% | Jun 30, 2012 |
| Q1 2012 | 46.2 | +2.73 | +6.28% | Mar 31, 2012 |
| Q4 2011 | 44.3 | Dec 31, 2011 | ||
| Q3 2011 | 44.3 | Sep 30, 2011 | ||
| Q2 2011 | 43.1 | Jun 30, 2011 | ||
| Q1 2011 | 43.4 | Mar 31, 2011 |