In 2020 I bought a company share for 1,000TL. The next year this share paid me a dividend 100 which I invested in a bank account that pays me 10% annually. The next year I received as a dividend 150TL which I also invested on the same bank account. The dividends continued to increase by 50TL every year and I invested all of them to the same bank account. After keeping this share for 20 years I sold it for 10,000TL. What is my total rate of return from this share and the dividends? Write your answer as a decimal number, with at least one digit after the decimal point. If your result is 10.5% just write 10.5 (DO NOT write it as 0.105 or DO NOT put a percentage sign)