 Complete the following phrase:  In 2018, Stefanidi increased her collection of medals, taking the third place 4.80 m. at the World Indoor Championships in Birmingham, and the first place 4.85 m at the European Championships in Berlin. She won the 2018 Diamond League series 4.87 m for a third consecutive year and completed the season with a second place 4.85 m behind Anzhelika Sidorova, representing Europe at the 