| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q2 2024 | 101 | -3.36 | -3.23% | Jun 30, 2024 |
| Q1 2024 | 98.8 | -7.31 | -6.89% | Mar 31, 2024 |
| Q4 2023 | 101 | -6.04 | -5.63% | Dec 31, 2023 |
| Q3 2023 | 104 | -4.84 | -4.46% | Sep 24, 2023 |
| Q2 2023 | 104 | -6.05 | -5.5% | Jun 25, 2023 |
| Q1 2023 | 106 | -5.36 | -4.81% | Mar 26, 2023 |
| Q4 2022 | 107 | -6.48 | -5.69% | Dec 25, 2022 |
| Q3 2022 | 108 | -9.05 | -7.7% | Sep 25, 2022 |
| Q2 2022 | 110 | -9.33 | -7.82% | Jun 26, 2022 |
| Q1 2022 | 111 | -7.83 | -6.56% | Mar 27, 2022 |
| Q4 2021 | 114 | -18.5 | -14% | Dec 26, 2021 |
| Q3 2021 | 117 | +0.19 | +0.16% | Sep 26, 2021 |
| Q2 2021 | 119 | +11.8 | +11% | Jun 27, 2021 |
| Q1 2021 | 119 | +21.8 | +22.4% | Mar 28, 2021 |
| Q4 2020 | 132 | +51 | +62.6% | Dec 27, 2020 |
| Q3 2020 | 117 | +34.2 | +41.1% | Sep 27, 2020 |
| Q2 2020 | 107 | +21.2 | +24.6% | Jun 28, 2020 |
| Q1 2020 | 97.5 | +5.82 | +6.35% | Mar 29, 2020 |
| Q4 2019 | 81.4 | -11.1 | -12% | Dec 29, 2019 |
| Q3 2019 | 83.1 | -12.2 | -12.8% | Sep 29, 2019 |
| Q2 2019 | 86.3 | -12.3 | -12.5% | Jun 30, 2019 |
| Q1 2019 | 91.6 | -7.55 | -7.61% | Mar 31, 2019 |
| Q4 2018 | 92.5 | -9.31 | -9.15% | Dec 30, 2018 |
| Q3 2018 | 95.3 | -10.3 | -9.73% | Sep 30, 2018 |
| Q2 2018 | 98.6 | -9.72 | -8.98% | Jul 1, 2018 |
| Q1 2018 | 99.2 | -14.9 | -13% | Apr 1, 2018 |
| Q4 2017 | 102 | -16.8 | -14.2% | Dec 31, 2017 |
| Q3 2017 | 106 | -18.1 | -14.6% | Oct 1, 2017 |
| Q2 2017 | 108 | -11.9 | -9.93% | Jul 2, 2017 |
| Q1 2017 | 114 | -0.75 | -0.65% | Apr 2, 2017 |
| Q4 2016 | 119 | +5.4 | +4.77% | Jan 1, 2017 |
| Q3 2016 | 124 | +13.1 | +11.9% | Sep 23, 2016 |
| Q2 2016 | 120 | +4.24 | +3.66% | Jun 24, 2016 |
| Q1 2016 | 115 | +3.73 | +3.36% | Mar 25, 2016 |
| Q4 2015 | 113 | +7.92 | +7.52% | Dec 25, 2015 |
| Q3 2015 | 111 | +16.9 | +18.1% | Sep 25, 2015 |
| Q2 2015 | 116 | +33.7 | +40.9% | Jun 26, 2015 |
| Q1 2015 | 111 | +25.9 | +30.4% | Mar 27, 2015 |
| Q4 2014 | 105 | +17 | +19.3% | Dec 26, 2014 |
| Q3 2014 | 93.7 | +5.79 | +6.59% | Sep 26, 2014 |
| Q2 2014 | 82.3 | -5.45 | -6.21% | Jun 27, 2014 |
| Q1 2014 | 85.2 | -1.88 | -2.16% | Mar 28, 2014 |
| Q4 2013 | 88.3 | +2.86 | +3.35% | Dec 27, 2013 |
| Q3 2013 | 87.9 | -0.24 | -0.27% | Sep 27, 2013 |
| Q2 2013 | 87.8 | -3.2 | -3.52% | Jun 28, 2013 |
| Q1 2013 | 87 | -1.38 | -1.56% | Mar 29, 2013 |
| Q4 2012 | 85.4 | -2.94 | -3.33% | Dec 28, 2012 |
| Q3 2012 | 88.1 | +5.27 | +6.36% | Sep 28, 2012 |
| Q2 2012 | 91 | +13.7 | +17.8% | Jun 29, 2012 |
| Q1 2012 | 88.4 | +10.9 | Mar 30, 2012 | |
| Q4 2011 | 88.3 | Dec 30, 2011 | ||
| Q3 2011 | 82.8 | Sep 30, 2011 | ||
| Q2 2011 | 77.2 | Jul 1, 2011 | ||
| Q1 2011 | 77.5* | Apr 1, 2011 |