| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q1 2023 | 6.97 | +0.19 | +2.81% | Mar 26, 2023 |
| Q4 2022 | 7.03 | +0.3 | +4.46% | Dec 25, 2022 |
| Q3 2022 | 6.94 | +0.17 | +2.51% | Sep 25, 2022 |
| Q2 2022 | 6.89 | +0.03 | +0.44% | Jun 26, 2022 |
| Q1 2022 | 6.77 | -0.46 | -6.36% | Mar 27, 2022 |
| Q4 2021 | 6.73 | -1.05 | -13.5% | Dec 26, 2021 |
| Q3 2021 | 6.77 | -1.59 | -19% | Sep 26, 2021 |
| Q2 2021 | 6.86 | -2.14 | -23.8% | Jun 27, 2021 |
| Q1 2021 | 7.23 | -2.11 | -22.6% | Mar 28, 2021 |
| Q4 2020 | 7.77 | -1.58 | -16.9% | Dec 27, 2020 |
| Q3 2020 | 8.36 | -1.36 | -14% | Sep 27, 2020 |
| Q2 2020 | 8.99 | -0.99 | -9.91% | Jun 28, 2020 |
| Q1 2020 | 9.34 | -1.14 | -10.9% | Mar 29, 2020 |
| Q4 2019 | 9.35 | -1.68 | -15.2% | Dec 29, 2019 |
| Q3 2019 | 9.72 | -1.36 | -12.3% | Sep 29, 2019 |
| Q2 2019 | 9.99 | -1.24 | -11% | Jun 30, 2019 |
| Q1 2019 | 10.5 | -0.68 | -6.1% | Mar 31, 2019 |
| Q4 2018 | 11 | +0.05 | +0.46% | Dec 30, 2018 |
| Q3 2018 | 11.1 | +0.2 | +1.84% | Sep 30, 2018 |
| Q2 2018 | 11.2 | +1.61 | +16.7% | Jul 1, 2018 |
| Q1 2018 | 11.2 | +2.29 | +25.8% | Apr 1, 2018 |
| Q4 2017 | 11 | +2.16 | +24.5% | Dec 31, 2017 |
| Q3 2017 | 10.9 | +1.99 | +22.4% | Sep 24, 2017 |
| Q2 2017 | 9.61 | -0.28 | -2.83% | Jun 25, 2017 |
| Q1 2017 | 8.86 | -1.97 | -18.2% | Mar 26, 2017 |
| Q4 2016 | 8.83 | -2.25 | -20.3% | Dec 25, 2016 |
| Q3 2016 | 8.9 | -1.73 | -16.3% | Sep 25, 2016 |
| Q2 2016 | 9.89 | -0.83 | -7.74% | Jun 26, 2016 |
| Q1 2016 | 10.8 | -0.05 | -0.46% | Mar 27, 2016 |
| Q4 2015 | 11.1 | +0.11 | +1% | Dec 27, 2015 |
| Q3 2015 | 10.6 | -0.85 | -7.41% | Sep 27, 2015 |
| Q2 2015 | 10.7 | -0.64 | -5.63% | Jun 28, 2015 |
| Q1 2015 | 10.9 | -0.5 | -4.39% | Mar 29, 2015 |
| Q4 2014 | 11 | -0.47 | -4.11% | Dec 28, 2014 |
| Q3 2014 | 11.5 | -0.24 | -2.05% | Sep 28, 2014 |
| Q2 2014 | 11.4 | -0.49 | -4.13% | Jun 29, 2014 |
| Q1 2014 | 11.4 | -0.61 | -5.09% | Mar 30, 2014 |
| Q4 2013 | 11.4 | -0.78 | -6.38% | Dec 29, 2013 |
| Q3 2013 | 11.7 | -0.7 | -5.64% | Sep 29, 2013 |
| Q2 2013 | 11.9 | -0.91 | -7.13% | Jun 30, 2013 |
| Q1 2013 | 12 | -0.75 | -5.89% | Mar 31, 2013 |
| Q4 2012 | 12.2 | Dec 30, 2012 | ||
| Q3 2012 | 12.4 | Sep 23, 2012 | ||
| Q2 2012 | 12.8 | Jun 24, 2012 | ||
| Q1 2012 | 12.7 | Mar 25, 2012 |