The study looked at cosmic rays and solar activity over the last four solar cycles. They found that different solar cycles have different effects on cosmic ray intensity, with solar wind temperature playing a bigger role during solar minimum. Solar cycle 20 stood out with unique characteristics, including mini and descending phase cycles. Cycles 21 and 22 also showed deviations from the expected relationship between solar activity and cosmic rays. The researchers observed rare events where the usual patterns were not followed. Overall, the study analyzed how solar parameters impact cosmic rays during different phases of solar cycles.