"Methane global emissions from the five broad categories (see Sect. 2.3) for the 2008–2017 decade for top-down inversion models (left light coloured box plots, Tg CH4 yr−1) and for bottom-up models and inventories (right dark coloured box plots). Median value and first and third quartiles are presented in the boxes. The whiskers represent the minimum and maximum values when suspected outliers are removed (see Sect. 2.2). Suspected outliers are marked with stars when they exist. Bottom-up quartiles are not available for bottom-up estimates, except for wetland emissions. Mean values are represented with “+” symbols; these are the values reported in Table 3."