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1
Current issues
Archived issues, current and historical H.15 data, along with weekly, monthly, and annual averages available for download
1967-1996
Government Document Journal -
2
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Government Document Journal -
3
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Government Document Journal -
4
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Government Document Journal -
5
requires Adobe Acrobat software
Government Document Journal -
6
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Government Document Journal -
7
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Government Document Journal -
8
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Government Document Journal