Nico bought 100 shares of Cisco Systems stock for​ $30.00 per share on January​ 1, 2018. He received a dividend of​ $2.00 per share at the end of 2018 and​ $3.00 per share at the end of 2019. At the end of​ 2020, Nico collected a dividend of​ $4.00 per share and sold his stock for​ $33.00 per share. What was​ Nico's realized holding period​ return?