| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q1 2025 | 96.7 | -6.31 | -6.13% | Mar 31, 2025 |
| Q4 2024 | 99.7 | -4.54 | -4.36% | Dec 31, 2024 |
| Q3 2024 | 100 | -4.97 | -4.72% | Sep 30, 2024 |
| Q2 2024 | 102 | -4.53 | -4.27% | Jun 30, 2024 |
| Q1 2024 | 103 | -3.97 | -3.71% | Mar 31, 2024 |
| Q4 2023 | 104 | -5.41 | -4.94% | Dec 31, 2023 |
| Q3 2023 | 105 | -11.3 | -9.72% | Sep 30, 2023 |
| Q2 2023 | 106 | -17.9 | -14.5% | Jun 30, 2023 |
| Q1 2023 | 107 | -23.8 | -18.2% | Mar 31, 2023 |
| Q4 2022 | 110 | -23.9 | -17.9% | Dec 31, 2022 |
| Q3 2022 | 117 | -18.3 | -13.6% | Sep 30, 2022 |
| Q2 2022 | 124 | -9.02 | -6.78% | Jun 30, 2022 |
| Q1 2022 | 131 | -6.64 | -4.83% | Mar 31, 2022 |
| Q4 2021 | 134 | -5.99 | -4.29% | Dec 31, 2021 |
| Q3 2021 | 135 | -2.28 | -1.66% | Sep 30, 2021 |
| Q2 2021 | 133 | -5.53 | -3.99% | Jun 30, 2021 |
| Q1 2021 | 137 | +6.31 | +4.81% | Mar 31, 2021 |
| Q4 2020 | 140 | +17.2 | +14.1% | Dec 31, 2020 |
| Q3 2020 | 137 | +17.5 | +14.6% | Sep 30, 2020 |
| Q2 2020 | 139 | +19.1 | +15.9% | Jun 30, 2020 |
| Q1 2020 | 131 | +12.3 | +10.3% | Mar 31, 2020 |
| Q4 2019 | 122 | -6.82 | -5.28% | Dec 31, 2019 |
| Q3 2019 | 120 | -20.4 | -14.6% | Sep 30, 2019 |
| Q2 2019 | 120 | -27.9 | -18.9% | Jun 30, 2019 |
| Q1 2019 | 119 | -36.7 | -23.6% | Mar 31, 2019 |
| Q4 2018 | 129 | -27.8 | -17.7% | Dec 31, 2018 |
| Q3 2018 | 140 | -17.1 | -10.9% | Sep 30, 2018 |
| Q2 2018 | 147 | -13.6 | -8.46% | Jun 30, 2018 |
| Q1 2018 | 155 | -8.75 | -5.33% | Mar 31, 2018 |
| Q4 2017 | 157 | -9.3 | -5.6% | Dec 31, 2017 |
| Q3 2017 | 157 | -14.5 | -8.42% | Sep 30, 2017 |
| Q2 2017 | 161 | -12.8 | -7.37% | Jun 30, 2017 |
| Q1 2017 | 164 | -13.5 | -7.58% | Mar 31, 2017 |
| Q4 2016 | 166 | -14.2 | -7.87% | Dec 31, 2016 |
| Q3 2016 | 172 | -11.7 | -6.4% | Sep 30, 2016 |
| Q2 2016 | 174 | -12.7 | -6.81% | Jun 30, 2016 |
| Q1 2016 | 178 | -13.2 | -6.9% | Mar 31, 2016 |
| Q4 2015 | 180 | -2.09 | -1.15% | Dec 31, 2015 |
| Q3 2015 | 183 | +10.7 | +6.22% | Sep 30, 2015 |
| Q2 2015 | 187 | +19.2 | +11.5% | Jun 30, 2015 |
| Q1 2015 | 191 | +31.1 | +19.5% | Mar 31, 2015 |
| Q4 2014 | 183 | +15.6 | +9.33% | Dec 31, 2014 |
| Q3 2014 | 173 | -1.19 | -0.69% | Sep 30, 2014 |
| Q2 2014 | 167 | -5.66 | -3.27% | Jun 30, 2014 |
| Q1 2014 | 160 | -11.1 | -6.5% | Mar 31, 2014 |
| Q4 2013 | 167 | +3.24 | +1.98% | Dec 31, 2013 |
| Q3 2013 | 174 | +18.3 | +11.8% | Sep 30, 2013 |
| Q2 2013 | 173 | +22.1 | +14.6% | Jun 30, 2013 |
| Q1 2013 | 171 | +24.3 | +16.6% | Mar 31, 2013 |
| Q4 2012 | 164 | +17.9 | +12.2% | Dec 31, 2012 |
| Q3 2012 | 155 | +8.95 | +6.11% | Sep 30, 2012 |
| Q2 2012 | 151 | +6.48 | +4.49% | Jun 30, 2012 |
| Q1 2012 | 147 | +3.63 | +2.54% | Mar 31, 2012 |
| Q4 2011 | 146 | Dec 31, 2011 | ||
| Q3 2011 | 147 | Sep 30, 2011 | ||
| Q2 2011 | 144 | Jun 30, 2011 | ||
| Q1 2011 | 143 | Mar 31, 2011 |