December 2025 so far
Accumulated statistics
| Period | Percentage of searches |
| 2025 | x̄ = 97.79 | |
| 2025-10-R3 | ? | |
| 2025-07-R2 | ? | |
| 2025-04-R1 | ? | |
| 2025-01-R4 | 97.79 | |
| 2024 | x̄ = 99.62 | |
| 2024-10-R3 | 99.44 | |
| 2024-07-R2 | 99.63 | |
| 2024-04-R1 | 99.69 | |
| 2024-01-R4 | 99.72 | |
| 2023 | x̄ = 99.84 | |
| 2023-10-R3 | 99.82 | |
| 2023-07-R2 | 99.85 | |
| 2023-04-R1 | 99.80 | |
| 2023-01-R4 | 99.90 | |
| 2022 | x̄ = 99.91 | |
| 2022-10-R3 | 99.93 | |
| 2022-07-R2 | 99.91 | |
| 2022-04-R1 | 99.90 | |
| 2022-01-R4 | 99.91 | |
| 2021 | x̄ = 99.65 | |
| 2021-10-R3 | 99.91 | |
| 2021-07-R2 | 99.94 | |
| 2021-04-R1 | 99.59 | |
| 2021-01-R4 | 99.14 | |
| 2020 | x̄ = 98.48 | |
| 2020-10-R3 | 98.86 | |
| 2020-07-R2 | 99.13 | |
| 2020-04-R1 | 97.79 | |
| 2020-01-R4 | 98.12 | |
| 2019 | x̄ = 99.06 | |
| 2019-10-R3 | 98.99 | |
| 2019-07-R2 | 97.81 | |
| 2019-04-R1 | 99.80 | |
| 2019-01-R4 | 99.65 | |
| 2018 | x̄ = 99.82 | |
| 2018-10-R3 | 99.79 | |
| 2018-07-R2 | 99.89 | |
| 2018-04-R1 | 99.81 | |
| 2018-01-R4 | 99.79 | |
| 2017 | x̄ = 99.71 | |
| 2017-10-R3 | 99.54 | |
| 2017-07-R2 | 99.90 | |
| 2017-04-R1 | 99.67 | |
| 2017-01-R4 | 99.73 | |
| 2016 | x̄ = 99.83 | |
| 2016-10-R3 | 99.74 | |
| 2016-07-R2 | 99.81 | |
| 2016-04-R1 | 99.92 | |
| 2016-01-R4 | 99.86 | |
| 2015 | x̄ = 99.84 | |
| 2015-10-R3 | 99.88 | |
| 2015-07-R2 | 99.81 | |
| 2015-04-R1 | 99.77 | |
| 2015-01-R4 | 99.89 | |
| 2014 | x̄ = 99.90 | |
| 2014-10-R3 | 99.83 | |
| 2014-07-R2 | 99.94 | |
| 2014-04-R1 | 99.93 | |
| 2014-01-R4 | 99.88 | |
| 2013 | x̄ = 99.89 | |
| 2013-10-R3 | 99.90 | |
| 2013-07-R2 | 99.95 | |
| 2013-04-R1 | 99.93 | |
| 2013-01-R4 | 99.78 | |
| 2012 | x̄ = 90.33 | |
| 2012-10-R3 | 99.82 | |
| 2012-07-R2 | 99.72 | |
| 2012-04-R1 | 71.45 | |