Formula One - TV Historic Audience Figures

[Jon39]

Can anyone provide any figures?
My guess is that there might be a long-term decline for UK, but probably an increase worldwide.

Is it possible to compare say;

1979, 1989, 1999, 2009, 2019, for both UK and worldwide?
Live viewers, but with a split for UK 2019, between live and highlights.

Just interested in what the trend has been.
We have seen an enormous reduction in the number of spectators attending club racing events in the UK, since the 1970s.
Do shopping centres really provide so much more entertainment? -