count mean std min 25% 50% 75% max
yr
2014 31,532,400.000000 49.999719 0.054461 49.556000 49.961000 49.996000 50.037000 50.319000
2015 31,536,000.000000 49.999737 0.054396 49.595000 49.961000 49.995000 50.037000 50.325000
2016 31,622,400.000000 49.999757 0.055475 49.575000 49.961000 49.996000 50.037000 50.312000
2017 31,536,000.000000 49.999742 0.060171 49.569000 49.957000 49.996000 50.041000 50.410000
2018 31,536,000.000000 49.999540 0.066200 49.598000 49.950000 49.995000 50.047000 50.342000
2019 31,536,000.000000 49.999515 0.064137 48.787000 49.951000 49.999000 50.047000 50.380000
2020 31,622,400.000000 49.999537 0.065980 49.574000 49.950000 49.999000 50.048000 50.397000
2021 31,536,000.000000 49.999495 0.062045 49.577000 49.953000 49.999000 50.046000 50.361000
2022 31,536,000.000000 49.999577 0.066317 49.641000 49.950000 50.002000 50.048000 50.352000
2023 31,536,000.000000 49.999564 0.069976 49.275000 49.946000 50.002000 50.052000 50.318000
2024 31,622,400.000000 49.999523 0.076094 49.594000 49.939000 50.004000 50.059000 50.321000
2025 31,536,000.000000 49.999585 0.073693 49.611000 49.941000 50.003000 50.057000 50.322000