If You dont have the User Agent info and the site is public accessible - (Ro)Bots will give an incorrect result on pageviews; search bots for google, facebook etc are very active.
Refer to Confluence SEO robots.txt for Managing search engines.
You need to sort out agent of types: bot, spider, crawer, facebook from the results to get more correct results.
Other monitoring/survaillance/measurement services can also have impact on the results.

What		Comment
Timestamp
Remote IP
Username		Apache has no user context
Spacename
Pagename		Apache has no app context. An URL is logged, but this can due to special chars in the Page Title be something like http://www.mos-eisley.dk/viewpage.action?id=1000 or a Tiny Link to a Confluence page, hence not the Pagename
URL
Return HTTP Code		This seems to only log "200 OK" requests, not "404 Page not found"
Responsetime
UserAgent

Tomcat Valve Logging

...

What		Comment
Timestamp
Remote IP		Not if there is a proxy in front, then the IP = 0:0:0:0:0:0:0:1
Username
Spacename	?
Pagename		An URL is logged, but this can due to special chars in the Page Title be something like http://www.mos-eisley.dk/viewpage.action?id=1000 or a Tiny Link to a Confluence page, hence not the Pagename. http://www.mos-eisley.dk/viewpage.action?id=1000 is just logged as http://www.mos-eisley.dk/pages/viewpage.action
URL
Return HTTP Code		This only logs what is "200 OK" requests, not "404 Page not found" and other.
Responsetime
UserAgent

Confluence Event Logging

...

What		Comment
Timestamp
Remote IP
Username		Extracted by the Script and hashed
Spacename		Extracted by the Script
Pagename		Extracted by the Script
URL
Return HTTP Code	THis	will only run for "200 OK" pagesThis only logs actual Page Events, so no return code is available.
Responsetime
UserAgent

...