| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q1 2024 | 130 | -1.8 | -1.36% | Mar 31, 2024 |
| Q4 2023 | 128 | -7.65 | -5.63% | Dec 31, 2023 |
| Q3 2023 | 131 | -4.68 | -3.46% | Sep 30, 2023 |
| Q2 2023 | 132 | -5.28 | -3.84% | Jun 30, 2023 |
| Q1 2023 | 132 | -7.52 | -5.39% | Mar 31, 2023 |
| Q4 2022 | 136 | -4.31 | -3.08% | Dec 31, 2022 |
| Q3 2022 | 135 | -8.52 | -5.92% | Sep 30, 2022 |
| Q2 2022 | 138 | -11.8 | -7.9% | Jun 30, 2022 |
| Q1 2022 | 140 | -15.2 | -9.82% | Mar 31, 2022 |
| Q4 2021 | 140 | -21.5 | -13.3% | Dec 31, 2021 |
| Q3 2021 | 144 | -13.3 | -8.47% | Sep 30, 2021 |
| Q2 2021 | 149 | -10.1 | -6.34% | Jun 30, 2021 |
| Q1 2021 | 155 | +2.35 | +1.54% | Mar 31, 2021 |
| Q4 2020 | 162 | +19.5 | +13.7% | Dec 31, 2020 |
| Q3 2020 | 157 | +19.2 | +13.9% | Sep 30, 2020 |
| Q2 2020 | 159 | +37.4 | +30.6% | Jun 30, 2020 |
| Q1 2020 | 152 | +31.1 | +25.6% | Mar 31, 2020 |
| Q4 2019 | 142 | +20.8 | +17.2% | Dec 31, 2019 |
| Q3 2019 | 138 | +16 | +13.1% | Sep 30, 2019 |
| Q2 2019 | 122 | -0.45 | -0.37% | Jun 30, 2019 |
| Q1 2019 | 121 | -5.1 | -4.04% | Mar 31, 2019 |
| Q4 2018 | 121 | -7.79 | -6.04% | Dec 31, 2018 |
| Q3 2018 | 122 | -12.1 | -8.98% | Sep 30, 2018 |
| Q2 2018 | 123 | -18.4 | -13% | Jun 30, 2018 |
| Q1 2018 | 126 | -14.8 | -10.5% | Mar 31, 2018 |
| Q4 2017 | 129 | -15.6 | -10.8% | Dec 31, 2017 |
| Q3 2017 | 134 | -14.2 | -9.55% | Sep 30, 2017 |
| Q2 2017 | 141 | -10.6 | -6.99% | Jun 30, 2017 |
| Q1 2017 | 141 | -12.6 | -8.21% | Mar 31, 2017 |
| Q4 2016 | 145 | -8.67 | -5.66% | Dec 31, 2016 |
| Q3 2016 | 148 | -3.77 | -2.48% | Sep 30, 2016 |
| Q2 2016 | 152 | +5.21 | +3.56% | Jun 30, 2016 |
| Q1 2016 | 154 | +11.2 | +7.87% | Mar 31, 2016 |
| Q4 2015 | 153 | +14.4 | +10.4% | Dec 31, 2015 |
| Q3 2015 | 152 | +16.8 | +12.4% | Sep 30, 2015 |
| Q2 2015 | 146 | +8.96 | +6.52% | Jun 30, 2015 |
| Q1 2015 | 143 | +2.56 | +1.83% | Mar 31, 2015 |
| Q4 2014 | 139 | -3.63 | -2.55% | Dec 31, 2014 |
| Q3 2014 | 135 | -9.93 | -6.83% | Sep 30, 2014 |
| Q2 2014 | 137 | -16.3 | -10.6% | Jun 30, 2014 |
| Q1 2014 | 140 | -22.3 | -13.7% | Mar 31, 2014 |
| Q4 2013 | 143 | -7.36 | -4.91% | Dec 31, 2013 |
| Q3 2013 | 145 | -30.8 | -17.5% | Sep 30, 2013 |
| Q2 2013 | 154 | -36.6 | -19.2% | Jun 30, 2013 |
| Q1 2013 | 162 | -54.8 | -25.2% | Mar 31, 2013 |
| Q4 2012 | 150 | -180 | -54.6% | Dec 31, 2012 |
| Q3 2012 | 176 | -155 | -46.9% | Sep 30, 2012 |
| Q2 2012 | 190 | -142 | -42.8% | Jun 30, 2012 |
| Q1 2012 | 217 | -62.2 | -22.3% | Mar 31, 2012 |
| Q4 2011 | 330 | Dec 31, 2011 | ||
| Q3 2011 | 331 | Sep 30, 2011 | ||
| Q2 2011 | 332 | Jun 30, 2011 | ||
| Q1 2011 | 279 | Mar 31, 2011 |