Suppose you bought a share of OPTUS at the end of 2017 for $55. At the end of 2018, you received a dividend of $2 and the price of the share was $53. You bought another share of Hema Engineering at the end of 2018. At the end of 2019, the price of this share was $60 and you received total dividends of $6 (i.e. $3 for each share). The arithmetic average annual return and the geometric average annual return on your investment are?