Here are NASA and GAO numbers:
Original cost of Hubble in 2019 dollars - $4.303 billion.
Not Yet Imagined: A Study of Hubble Space Telescope Operations (nasa.gov)
See page 345
Cost of first 4 servicing missions $1.4 billion to $2.6 billion
(Does not include the 5th servicing mission in 2009)
GAO-05-34 Space Shuttle: Costs for Hubble Servicing Mission and Implementation of Safety Recommendations Not Yet Definitive
See page 6
Original cost of Hubble in 2019 dollars - $4.303 billion.
Not Yet Imagined: A Study of Hubble Space Telescope Operations (nasa.gov)
See page 345
Cost of first 4 servicing missions $1.4 billion to $2.6 billion
(Does not include the 5th servicing mission in 2009)
GAO-05-34 Space Shuttle: Costs for Hubble Servicing Mission and Implementation of Safety Recommendations Not Yet Definitive
See page 6