| Period | Value | YoY Chg | Change % | Start Date | End Date |
|---|---|---|---|---|---|
| Q1 2024 | 82.1 | +7.15 | +9.54% | Mar 31, 2024 | |
| Q4 2023 | 74.8 | +0.04 | +0.05% | Dec 31, 2023 | |
| Q3 2023 | 75.8 | +2.4 | +3.27% | Sep 30, 2023 | |
| Q2 2023 | 76.2 | +2.52 | +3.42% | Jun 30, 2023 | |
| Q1 2023 | 75 | -2.02 | -2.63% | Mar 31, 2023 | |
| Q4 2022 | 74.8 | -4.08 | -5.18% | Dec 31, 2022 | |
| Q3 2022 | 73.4 | -7.25 | -8.99% | Sep 30, 2022 | |
| Q2 2022 | 73.7 | -6.51 | -8.12% | Jun 30, 2022 | |
| Q1 2022 | 77 | -0.49 | -0.63% | Mar 31, 2022 | |
| Q4 2021 | 78.9 | -2.56 | -3.15% | Dec 31, 2021 | |
| Q3 2021 | 80.6 | -1.71 | -2.08% | Sep 30, 2021 | |
| Q2 2021 | 80.2 | -4.38 | -5.18% | Jun 30, 2021 | |
| Q1 2021 | 77.5 | -39 | -33.5% | Mar 31, 2021 | |
| Q4 2020 | 81.4 | -36.4 | -30.9% | Dec 31, 2020 | |
| Q3 2020 | 82.3 | -52 | -38.7% | Sep 30, 2020 | |
| Q2 2020 | 84.6 | -89 | -51.3% | Jun 30, 2020 | |
| Q1 2020 | 116 | -5.14 | -4.23% | Mar 31, 2020 | |
| Q4 2019 | 118 | -1.85 | -1.55% | Dec 31, 2019 | |
| Q3 2019 | 134 | +23.1 | +20.8% | Sep 30, 2019 | |
| Q2 2019 | 174 | +64.2 | +58.7% | Jun 30, 2019 | |
| Q1 2019 | 122 | +9.52 | +8.5% | Mar 31, 2019 | |
| Q4 2018 | 120 | +4.13 | +3.58% | Dec 31, 2018 | |
| Q3 2018 | 111 | -17.9 | -13.9% | Sep 30, 2018 | |
| Q2 2018 | 109 | -18.4 | -14.4% | Jun 30, 2018 | |
| Q1 2018 | 112 | -5.05 | -4.31% | Mar 31, 2018 | |
| Q4 2017 | 116 | -1.62 | -1.38% | Dec 31, 2017 | |
| Q3 2017 | 129 | +10.8 | +9.14% | Sep 30, 2017 | |
| Q2 2017 | 128 | +4.49 | +3.64% | Jun 30, 2017 | |
| Q1 2017 | 117 | -17.9 | -13.3% | Mar 31, 2017 | |
| Q4 2016 | 117 | -32.5 | -21.7% | Dec 31, 2016 | |
| Q3 2016 | 118 | -33 | -21.8% | Sep 30, 2016 | |
| Q2 2016 | 123 | -32.2 | -20.7% | Jun 30, 2016 | |
| Q1 2016 | 135 | -25.3 | -15.8% | Mar 31, 2016 | |
| Q4 2015 | 150 | -13.5 | -8.26% | Dec 31, 2015 | |
| Q3 2015 | 151 | -8.14 | -5.11% | Sep 30, 2015 | |
| Q2 2015 | 155 | -0.29 | -0.19% | Jun 30, 2015 | |
| Q1 2015 | 160 | +3.17 | +2.02% | Mar 31, 2015 | |
| Q4 2014 | 163 | +7.61 | +4.89% | Dec 31, 2014 | |
| Q3 2014 | 159 | +1.38 | +0.87% | Sep 30, 2014 | |
| Q2 2014 | 156 | -1.63 | -1.04% | Jun 30, 2014 | |
| Q1 2014 | 157 | -3.15 | -1.97% | Mar 31, 2014 | |
| Q4 2013 | 155 | -7.4 | -4.54% | Dec 31, 2013 | |
| Q3 2013 | 158 | +2.07 | +1.33% | Sep 30, 2013 | |
| Q2 2013 | 157 | +16.1 | +11.4% | Jun 30, 2013 | |
| Q1 2013 | 160 | +39.5 | +32.7% | Mar 31, 2013 | |
| Q4 2012 | 163 | +53.5 | +48.9% | Dec 31, 2012 | |
| Q3 2012 | 156 | +45.5 | +41.2% | Sep 30, 2012 | |
| Q2 2012 | 141 | +26.6 | +23.2% | Jun 30, 2012 | |
| Q1 2012 | 121 | -1.09 | -0.9% | Mar 31, 2012 | |
| Q4 2011 | 109 | -19 | -14.8% | Dec 31, 2011 | |
| Q3 2011 | 110 | Sep 30, 2011 | |||
| Q2 2011 | 115 | Jun 30, 2011 | |||
| Q1 2011 | 122 | Mar 31, 2011 | |||
| Q4 2010 | 128 | Dec 31, 2010 |