21. Hebei Economic Yearbook = Hebei Jing ji Nian Jian (2008-2011, 2013-2019) Bookmark Format Series - ongoing
22. Heilongjiang Statistical Yearbook / 黑龙江统计年鉴 / 黑龙江省统计局编 / Heilongjiang tong ji nian jian / Heilongjiang Sheng tong ji ju bian (2004, 2005, 2007-2011, 2014-2021) Bookmark Format Series - ongoing
25. High-Frequency Phone Survey on COVID-19 2020-2021 - World Bank LSMS Harmonized Dataset [Uganda] Bookmark Format Series - ongoing
26. High-Frequency Phone Survey on COVID-19 - World Bank LSMS Harmonized Dataset [Malawi] 2019 - 2021 Bookmark Format Series - ongoing
28. Historical, Demographic, Economic, and Social Data: The United States, 1790-2002 Bookmark Format Series - completed
29. Hubei Statistical Yearbook / Hubei tong ji nian jian / Hubei Sheng tong ji ju bian. (2007-2012, 2014-2021) Bookmark Format Series - ongoing
30. Hunan Statistical Yearbook / Hunan tong ji nian jian / Hunan Sheng tong ji ju bian. (2000, 2005, 2012-2021) Bookmark Format Series - ongoing