Tables based on 2021 table with changes from 2019 for Ar, Hf, Ir, Pb, and Yb. Values revised for Gd, Lu, and Zr in 2024. Atomic weights available in five significant figures
Population growth rate and age distribution data available. Life expectancy measured at birth and in full health. Health status tracked through various indicators
PDB files are textual descriptions of 3D molecular structures in Protein Data Bank. Contains atomic coordinates, secondary structure assignments, and experimental metadata. Can be saved as ENT or BRK extensions. Now considered legacy format, replaced by newer mmCIF format
UN Population Fund and World Bank provide international rankings based on 2022 and 2020 data. CIA and INED use World Factbook and other publications for rankings. PRB and OWID rely on World Population Data Sheets and other sources
UNDP compiles HDI for 193 nations annually. Index measures health, education, income and living conditions. First published in 1990 as comprehensive development measure
Global life expectancy was 73.4 years in 2023, with males at 70.8 and females at 76.0. Life expectancy increased 5.5 years globally between 2000-2016. Life expectancy varies significantly by region, from 57.7 in Africa to 82.7 in Europe