trips per year202220212020201920182017201620152014201320122011201020080246810distance per year20222021202020192018201720162015201420132012201120102008010,00020,00030,00040,00050,00060,00070,00080,000carbon emissisons per year2022202120202019201820172016201520142013201220112010200802468101214durations per year0countries per year202220212020201920182017201620152014201320122011201020080246810cities per year202220212020201920182017201620152014201320122011201020080.00.20.40.60.81.0