| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 159 | -32 | -16.7% | Jun 30, 2024 |
| Q1 2024 | 166 | -17 | -9.29% | Mar 31, 2024 |
| Q4 2023 | 170 | -12 | -6.61% | Dec 31, 2023 |
| Q3 2023 | 180 | -3.63 | -1.97% | Sep 30, 2023 |
| Q2 2023 | 191 | +6.08 | +3.28% | Jun 30, 2023 |
| Q1 2023 | 183 | -4.57 | -2.44% | Mar 31, 2023 |
| Q4 2022 | 182 | -4.25 | -2.28% | Dec 31, 2022 |
| Q3 2022 | 184 | -3.46 | -1.85% | Sep 30, 2022 |
| Q2 2022 | 185 | -9.07 | -4.67% | Jun 30, 2022 |
| Q1 2022 | 188 | -13.6 | -6.78% | Mar 31, 2022 |
| Q4 2021 | 186 | -27.6 | -12.9% | Dec 31, 2021 |
| Q3 2021 | 187 | -29.5 | -13.6% | Sep 30, 2021 |
| Q2 2021 | 194 | -24 | -11% | Jun 30, 2021 |
| Q1 2021 | 201 | -19.3 | -8.74% | Mar 31, 2021 |
| Q4 2020 | 214 | -8.15 | -3.67% | Dec 31, 2020 |
| Q3 2020 | 217 | -16.8 | -7.18% | Sep 30, 2020 |
| Q2 2020 | 218 | -26.9 | -11% | Jun 30, 2020 |
| Q1 2020 | 220 | -35 | -13.7% | Mar 31, 2020 |
| Q4 2019 | 222 | -43.3 | -16.3% | Dec 31, 2019 |
| Q3 2019 | 234 | -36 | -13.3% | Sep 30, 2019 |
| Q2 2019 | 245 | -28.8 | -10.5% | Jun 30, 2019 |
| Q1 2019 | 255 | -27.1 | -9.58% | Mar 31, 2019 |
| Q4 2018 | 265 | -20.5 | -7.18% | Dec 31, 2018 |
| Q3 2018 | 270 | -17.5 | -6.08% | Sep 30, 2018 |
| Q2 2018 | 274 | -14.7 | -5.11% | Jun 30, 2018 |
| Q1 2018 | 282 | -5.09 | -1.77% | Mar 31, 2018 |
| Q4 2017 | 286 | -1.56 | -0.54% | Dec 31, 2017 |
| Q3 2017 | 287 | -2.44 | -0.84% | Sep 30, 2017 |
| Q2 2017 | 289 | -3.94 | -1.35% | Jun 30, 2017 |
| Q1 2017 | 288 | -16 | -5.28% | Mar 31, 2017 |
| Q4 2016 | 287 | -22.2 | -7.18% | Dec 31, 2016 |
| Q3 2016 | 290 | -17.3 | -5.64% | Sep 30, 2016 |
| Q2 2016 | 293 | -15.7 | -5.09% | Jun 30, 2016 |
| Q1 2016 | 304 | +2.11 | +0.7% | Mar 31, 2016 |
| Q4 2015 | 310 | +16.5 | +5.64% | Dec 31, 2015 |
| Q3 2015 | 307 | +21.9 | +7.69% | Sep 30, 2015 |
| Q2 2015 | 308 | +33.9 | +12.3% | Jun 30, 2015 |
| Q1 2015 | 301 | +29.3 | +10.8% | Mar 31, 2015 |
| Q4 2014 | 293 | +19.1 | +6.96% | Dec 31, 2014 |
| Q3 2014 | 285 | +6.17 | +2.21% | Sep 30, 2014 |
| Q2 2014 | 274 | -10.3 | -3.61% | Jun 30, 2014 |
| Q1 2014 | 272 | -8.16 | -2.91% | Mar 31, 2014 |
| Q4 2013 | 274 | -1.36 | -0.49% | Dec 31, 2013 |
| Q3 2013 | 279 | +2.64 | +0.96% | Sep 30, 2013 |
| Q2 2013 | 285 | -10.9 | -3.67% | Jun 30, 2013 |
| Q1 2013 | 280 | -45.1 | -13.8% | Mar 31, 2013 |
| Q4 2012 | 275 | -97.5 | -26.1% | Dec 31, 2012 |
| Q3 2012 | 276 | -135 | -32.9% | Sep 30, 2012 |
| Q2 2012 | 295 | -104 | -25.9% | Jun 30, 2012 |
| Q1 2012 | 325 | -62.1 | -16% | Mar 31, 2012 |
| Q4 2011 | 373 | Dec 31, 2011 | ||
| Q3 2011 | 411 | Sep 30, 2011 | ||
| Q2 2011 | 399 | Jun 30, 2011 | ||
| Q1 2011 | 387 | Mar 31, 2011 |