In case your looking for some numbers to use when doing your taxes now or in the future, I’ve compiled the closing market values of Steem and SBD according to Coin Market Cap for the years 2017 and 2016.
Since 2017 is probably more relevant to everyone, I will begin with the data for that year.
Average annual value for Steem in 2017: $0.974461707
Average annual value for SBD in 2017: $1.699386057
Daily values and Monthly averages for January and February
Daily values and Monthly averages for March and April
Daily values and Monthly averages for May and June
Daily values and Monthly averages for July and August
Daily values and Monthly averages for September and October
Daily values and Monthly averages for November and December
Average annual value for Steem in 2016: $0.68396503
Average annual value for SBD in 2016: $0.943522868
Daily Values and Monthly Averages for April and May
Daily Values and Monthly Averages for June and July
Daily Values and Monthly Averages for August and September
Daily Values and Monthly Averages for October and November
Daily Values and Monthly Averages for December
Disclaimer: I cannot verify that these charts are one hundred percent mistake free as I transcribed the numbers by hand, but I do believe that they are accurate enough for tax purposes.