To clarify, there were links in the twitter post, but I did not look at them.
I double checked those numbers-the numbers for 2018 and 2019 are correct. The chart for 2020 only went to 9/24 and the totals were updated on 9/25-but the amount seems reasonable.
I have no way of knowing how the annualized number was calculated. The current year stats would have a lag time due the delay involved between actual date of death and reporting of death.
From the Summary:
In 2018, a total of 2,839,205 resident deaths were registered in the United States—
https://www.cdc.gov/nchs/products/databriefs/db355.htm
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2019
December
2,855,000 12 Month-ending Number of Deaths
https://www.cdc.gov/nchs/nvss/vsrr/provisional-tables.htm
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The number for 9/24/20 was updated on 9/25/20 :
2,041,186 through Sep 25th
https://www.cdc.gov/nchs/nvss/vsrr/covid19/index.htm
Sarah’s update reported :
2020: 2,787,590 annualized
2,041,186 through Sep 25th