English: "Source: UNFCCC (2020)." "Further insights can be derived from the comparison of bunker fuel use (international and domestic) in relation to national greenhouse gas emissions including international bunkers. In 28 of 43 Annex I countries, the share of emissions from air transport exceeded 2% of annual greenhouse gas emissions in 2017 (Fig. 4). For five countries, the share even exceeded 10%, including in Cyprus (10.1%), Switzerland (10.4%), Luxembourg (14.2%), Malta (16.7%), and Iceland (19.9%). As the data represents a ratio, the comparison of 1990 and 2017 also confirms that in virtually all countries, emissions from aviation have grown faster than those from the economy in general. Cyprus is the only country with a lower share of aviation emissions in 2017 than in 1990."