| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q1 2024 | 257 | -0.77 | -0.3% | Mar 31, 2024 |
| Q4 2023 | 265 | +15.4 | +6.18% | Dec 31, 2023 |
| Q3 2023 | 270 | +23.8 | +9.65% | Sep 30, 2023 |
| Q2 2023 | 266 | +27.5 | +11.6% | Jun 30, 2023 |
| Q1 2023 | 258 | +22.1 | +9.37% | Mar 31, 2023 |
| Q4 2022 | 250 | +13.7 | +5.8% | Dec 31, 2022 |
| Q3 2022 | 246 | +5.66 | +2.35% | Sep 30, 2022 |
| Q2 2022 | 238 | -14.1 | -5.59% | Jun 30, 2022 |
| Q1 2022 | 236 | -17.6 | -6.92% | Mar 31, 2022 |
| Q4 2021 | 236 | -21.4 | -8.32% | Dec 31, 2021 |
| Q3 2021 | 241 | -15 | -5.86% | Sep 30, 2021 |
| Q2 2021 | 253 | -3.13 | -1.22% | Jun 30, 2021 |
| Q1 2021 | 254 | -7.44 | -2.85% | Mar 31, 2021 |
| Q4 2020 | 258 | +0.05 | +0.02% | Dec 31, 2020 |
| Q3 2020 | 256 | +2.54 | +1% | Sep 30, 2020 |
| Q2 2020 | 256 | +14.1 | +5.83% | Jun 30, 2020 |
| Q1 2020 | 261 | +31.8 | +13.9% | Mar 31, 2020 |
| Q4 2019 | 258 | +33.4 | +14.9% | Dec 31, 2019 |
| Q3 2019 | 253 | +33.2 | +15.1% | Sep 30, 2019 |
| Q2 2019 | 242 | +23.5 | +10.8% | Jun 30, 2019 |
| Q1 2019 | 229 | +14.2 | +6.61% | Mar 31, 2019 |
| Q4 2018 | 224 | +7.71 | +3.56% | Dec 31, 2018 |
| Q3 2018 | 220 | +3.59 | +1.66% | Sep 30, 2018 |
| Q2 2018 | 218 | -12.6 | -5.48% | Jun 30, 2018 |
| Q1 2018 | 215 | -24.9 | -10.4% | Mar 31, 2018 |
| Q4 2017 | 217 | -18.6 | -7.89% | Dec 31, 2017 |
| Q3 2017 | 216 | -14.3 | -6.22% | Sep 30, 2017 |
| Q2 2017 | 231 | +4.74 | +2.1% | Jun 30, 2017 |
| Q1 2017 | 240 | +25.2 | +11.7% | Mar 31, 2017 |
| Q4 2016 | 235 | +26.4 | +12.7% | Dec 31, 2016 |
| Q3 2016 | 231 | +21.3 | +10.2% | Sep 30, 2016 |
| Q2 2016 | 226 | +16.6 | +7.95% | Jun 30, 2016 |
| Q1 2016 | 215 | -14.5 | -6.33% | Mar 31, 2016 |
| Q4 2015 | 209 | -34.4 | -14.2% | Dec 31, 2015 |
| Q3 2015 | 209 | -50.3 | -19.4% | Sep 30, 2015 |
| Q2 2015 | 209 | -49.6 | -19.2% | Jun 30, 2015 |
| Q1 2015 | 229 | -28.7 | -11.1% | Mar 31, 2015 |
| Q4 2014 | 243 | -11.7 | -4.58% | Dec 31, 2014 |
| Q3 2014 | 260 | +8.88 | +3.54% | Sep 30, 2014 |
| Q2 2014 | 259 | +5.5 | +2.17% | Jun 30, 2014 |
| Q1 2014 | 258 | +10.4 | +4.19% | Mar 31, 2014 |
| Q4 2013 | 255 | +2.79 | +1.11% | Dec 31, 2013 |
| Q3 2013 | 251 | -6.38 | -2.48% | Sep 30, 2013 |
| Q2 2013 | 253 | -4.88 | -1.89% | Jun 30, 2013 |
| Q1 2013 | 248 | -20.4 | -7.62% | Mar 31, 2013 |
| Q4 2012 | 252 | -19.8 | -7.29% | Dec 31, 2012 |
| Q3 2012 | 257 | -13.5 | -4.98% | Sep 30, 2012 |
| Q2 2012 | 258 | +3.64 | +1.43% | Jun 30, 2012 |
| Q1 2012 | 268 | +31 | +13.1% | Mar 31, 2012 |
| Q4 2011 | 272 | Dec 31, 2011 | ||
| Q3 2011 | 271 | Sep 30, 2011 | ||
| Q2 2011 | 255 | Jun 30, 2011 | ||
| Q1 2011 | 237 | Mar 31, 2011 |