| Period | Value | YoY Chg | Change % | Start Date | End Date |
|---|---|---|---|---|---|
| Q1 2024 | 94.4 | -15.7 | -14.2% | Mar 31, 2024 | |
| Q4 2023 | 97.7 | -13.9 | -12.5% | Dec 31, 2023 | |
| Q3 2023 | 104 | -10 | -8.8% | Sep 30, 2023 | |
| Q2 2023 | 109 | -4.45 | -3.94% | Jun 30, 2023 | |
| Q1 2023 | 110 | -10.3 | -8.52% | Mar 31, 2023 | |
| Q4 2022 | 112 | -8.98 | -7.44% | Dec 31, 2022 | |
| Q3 2022 | 114 | -3.41 | -2.91% | Sep 30, 2022 | |
| Q2 2022 | 113 | -1.78 | -1.55% | Jun 30, 2022 | |
| Q1 2022 | 120 | +18.4 | +18% | Mar 31, 2022 | |
| Q4 2021 | 121 | +17.1 | +16.5% | Dec 31, 2021 | |
| Q3 2021 | 117 | +10.9 | +10.3% | Sep 30, 2021 | |
| Q2 2021 | 115 | -0.72 | -0.62% | Jun 30, 2021 | |
| Q1 2021 | 102 | -20.5 | -16.7% | Mar 31, 2021 | |
| Q4 2020 | 104 | -20.3 | -16.4% | Dec 31, 2020 | |
| Q3 2020 | 106 | -22.5 | -17.5% | Sep 30, 2020 | |
| Q2 2020 | 116 | -11.8 | -9.25% | Jun 30, 2020 | |
| Q1 2020 | 123 | -9.02 | -6.86% | Mar 31, 2020 | |
| Q4 2019 | 124 | -8.46 | -6.39% | Dec 31, 2019 | |
| Q3 2019 | 129 | +1.68 | +1.32% | Sep 30, 2019 | |
| Q2 2019 | 127 | +5.61 | +4.61% | Jun 30, 2019 | |
| Q1 2019 | 132 | +13 | +10.9% | Mar 31, 2019 | |
| Q4 2018 | 132 | +15.2 | +13% | Dec 31, 2018 | |
| Q3 2018 | 127 | +4.58 | +3.74% | Sep 30, 2018 | |
| Q2 2018 | 122 | -10.5 | -7.94% | Jun 30, 2018 | |
| Q1 2018 | 119 | -23.5 | -16.6% | Mar 31, 2018 | |
| Q4 2017 | 117 | -25.2 | -17.7% | Dec 31, 2017 | |
| Q3 2017 | 122 | -21 | -14.7% | Sep 30, 2017 | |
| Q2 2017 | 132 | -8.64 | -6.13% | Jun 30, 2017 | |
| Q1 2017 | 142 | +6.65 | +4.91% | Mar 31, 2017 | |
| Q4 2016 | 142 | -0.36 | -0.25% | Dec 31, 2016 | |
| Q3 2016 | 143 | -7.3 | -4.84% | Sep 30, 2016 | |
| Q2 2016 | 141 | -0.07 | -0.05% | Jun 30, 2016 | |
| Q1 2016 | 135 | -0.45 | -0.33% | Mar 31, 2016 | |
| Q4 2015 | 143 | +10.4 | +7.82% | Dec 31, 2015 | |
| Q3 2015 | 151 | +26.5 | +21.3% | Sep 30, 2015 | |
| Q2 2015 | 141 | +10.1 | +7.69% | Jun 30, 2015 | |
| Q1 2015 | 136 | +2.33 | +1.74% | Mar 31, 2015 | |
| Q4 2014 | 132 | -0.69 | -0.52% | Dec 31, 2014 | |
| Q3 2014 | 124 | -7.73 | -5.86% | Sep 30, 2014 | |
| Q2 2014 | 131 | -5.28 | -3.88% | Jun 30, 2014 | |
| Q1 2014 | 134 | -8.27 | -5.83% | Mar 31, 2014 | |
| Q4 2013 | 133 | -13.4 | -9.13% | Dec 31, 2013 | |
| Q3 2013 | 132 | -17.8 | -11.9% | Sep 30, 2013 | |
| Q2 2013 | 136 | -15.9 | -10.4% | Jun 30, 2013 | |
| Q1 2013 | 142 | -2.15 | -1.49% | Mar 31, 2013 | |
| Q4 2012 | 146 | +12.4 | +9.23% | Dec 31, 2012 | |
| Q3 2012 | 150 | +10.6 | +7.61% | Sep 30, 2012 | |
| Q2 2012 | 152 | +17.5 | +13% | Jun 30, 2012 | |
| Q1 2012 | 144 | +2.81 | +1.99% | Mar 31, 2012 | |
| Q4 2011 | 134 | -17.2 | -11.4% | Dec 31, 2011 | |
| Q3 2011 | 139 | Sep 30, 2011 | |||
| Q2 2011 | 135 | Jun 30, 2011 | |||
| Q1 2011 | 141 | Mar 31, 2011 | |||
| Q4 2010 | 151 | Dec 31, 2010 |