Yeap.

Defence Expenditure of NATO Countries 2012-2019 pdf

You need to use NATO as they have a consistent accounting standard for what is defence expenditure.

Something that SIPRI, your source, can't do and admits.

In practice it is not possible to apply this definition for all countries, and in many cases SIPRI is confined to using the national data provided. Priority is then given to the choice of a uniform definition over time for each country in order to achieve consistency over time, rather than to adjusting the figures for single years according to a common definition. In the light of these difficulties, military expenditure data is most appropriately used for comparisons over time, and may be less suitable for close comparison between individual countries.