Hordeum spp.: two-row barley (H. disticum) six-row barley (H. hexasticum) four-row barley (H. vulgare). Tolerates poorer soils and lower temperatures better than does wheat. Varieties include with husk and without (naked). Used as a livestock feed, for malt and for preparing foods. The roasted grains are a coffee substitute.
| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reino Unido | 5,93 | 6,09 | 5,72 | 6,93 | 5,85 | 6,05 | 6,69 | 6,22 | ||||||||||
| Estados Unidos de América | 2,31 | 3,02 | 3,29 | 3,49 | 3,93 | 3,72 | 3,60 | 3,84 | 3,91 | 3,72 | 4,19 | 3,93 | 4,17 | 4,18 | 4,15 | 3,25 | 3,85 | 3,90 |
| Japón | 2,54 | 3,26 | 3,96 | 3,42 | 2,78 | 2,88 | 2,87 | 3,08 | 2,87 | 2,92 | 2,87 | 3,05 | 2,87 | 3,67 | 3,47 | 3,73 | 3,70 | 3,70 |
| Canadá | 2,22 | 2,97 | 2,96 | 3,21 | 3,19 | 3,29 | 2,90 | 3,83 | 3,28 | 3,51 | 3,90 | 3,73 | 3,50 | 3,81 | 3,82 | 2,32 | 3,79 | 3,30 |