The Line graph illustrates the closing price of Gold, Platinum and Palladium between the year 2013 and 2021.
Overall, Palladium has reached peak in the final year, thought it was the least selected metal at the beginning. Where as the Platinum is the lowest used material in the chart, Gold and Platinum where approximately equal in the beginning.
Palladium fluctuates slightly between 700$ in the year 2013 and 2016, a steady increase till 1000$ in 2018, although it continues same level of rise in final 2021, it has a rapid grow between 2018 and 2020 from 1000$ to 2250$ approximately.
Gold was the highest priced cosmetic in 2013 (1500$), but it was moderately reduced nearly up-to 800$ in 2017. And stayed constant till 2020, ended up in 2021 with slow growth 1100$ in final year 2021. Platinum was almost similar to the Gold when started, going-on it sightly decreased till 2015, along with it gradually rose as far as 2019. Although it quickly expanded till 2020 (1500$), it remains study till 2021