In 2020, Austrian Post transported 166 million parcels, a 30 percent rise from the previous year. We achieved a disproportionately high increase year-on-year, raising our market share in the Austrian parcel segment from 52 percent in 2019 to 58 percent in 2020 and further expanding upon our market leadership position. Even if 2020 proved to be an exceptional year due to the coronavirus pandemic, the trend towards e-commerce is continuing and also resulted in volume growth of more than 20 percent in the first half of 2021. The phenomenon of e-commerce is here to stay, and we have prepared ourselves for this.
Austrian Post is investing heavily so that we can continue to cope with these volumes and further growth which we expect to be in the high single-digit percentage range in the medium term. These investments are in our infrastructure as well as in human resources and the expansion of our innovative customer solutions. We regularly evaluate where we stand and constantly consider new, innovative ideas to be able to offer even more convenience to our customers.
We are investing roughly half a billion euros within the context of our multi-year expansion programme. We will succeed in enhancing our sorting performance by 30 percent by 2022 alone.