[['7', 'QUANTITY_WORLD_RANK', '12'], ['7', 'PRODUCTION_(MT)', '3800000'], ['Barley', 'RANK', '7'], ['7', 'VALUE_(INT_$1000)', '389709'], ['7', 'VALUE_WORLD_RANK', '7']]
When the value world rank is 7, 7.0 is the rank.