The line graph demonstrates the mean closing cost of three precious metals between 2013 and 2021.
Overall, palladium witnessed the most significant rise throughout the given period. Platinum, in turn, was the only metal that experienced the decline in price in comparison with remainders of the metals.
Starting with the lowest cost of around 750 dollars per oz. in 2013, palladium remained with relatively same value until the 2016. It witnessed a steady rise to approximately 1000 dollars per oz.in 2018, before it reached to its peak in 2021 with the highest cost compared to other metals, which is just under 2500 dollars per oz.
Gold and Platinum owned similar price around 1500 dollars per oz. initially, and experienced the same small decline until 2015. However, before significantly increasing to around 1750 dollars per oz. and remaining same in both 2020 and 2021, gold got back to the starting price in 2019. After the slight drop to approximately 1000 dollars per oz. in 2015, platinum hold that relatively steady price until over the last 6 years.