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Table 1
The periods of oscillations that are found in the area of the waveguides that exist at 95% confidence level.
| Data set | Period (Mins) | Ratio (P1/Pi) |
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| Sunspot 1999 | P1 − 32 ± 2.5 | – |
| P2 – 16 ± 1.5 | 2 ± 0.2 | |
| P3 – 7 ± 0.5 | 4.6 ± 0.3 | |
| P4 – 4 ± 0.5 | 8 ± 0.5 | |
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| Sunspot 2005 | P1 – 16.5 ± 1.5 | – |
| P2 – 11 ± 0.5 | 1.5 ± 0.2 | |
| P3 – 7.5 ± 0.5 | 2.2 ± 0.2 | |
| P4 – 4 ± 0.5 | 4.2 ± 0.6 | |
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| Pore 2008 | P1 – 14.5 ± 0.5 | – |
| P2 – 8.5 ± 0.5 | 1.7 ± 0.1 | |
| P3 – 4.5 ± 0.5 | 3.2 ± 0.2 | |
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