Learn English – Which preposition should I use after “well versed”

The appropriate preposition depends whether what follows the preposition is the precise definition of the single statistic that follows the preposition (in which case for is the only appropriate option, or whether it is a general description of the statistic, in which case all of your suggestions are appropriate.

The statistic for perinatal mortalities in Cambodia in 2016 is quite shocking.

He produced a statistic for/about/on/of perinatal mortalities to support the need for extra funding.

The options available depend, therefore, on how specific you are in the text that immediately follows the preposition. If it defines a speficic statistic or class of statistics, then only for is valid:

government statistics for the proportion of foreign coverage on British television over the past decade...

If, however, you use less specific terminology, all of the options that you have suggested are reasonable:

government statistics for/about/on/of foreign coverage on British television...

'With' means the curtains and hooks are in the same location, and the curtains (at least) are hanging. It would only be appropriate if there were, for example, a package of hooks in a store and you asked where the curtains were.

If you mean that the curtains are being supported by the hooks, then 'on' is the only appropriate word of the two.