Bond Movies and their relationship to the novels.

A commenter suggests that “lots of Bond movies” are not based on source novels.

Well, that’s an interesting topic, so let’s take a look.

Doctor No (1962): Based on the novel and followed the novel closely.
From Russia With Love (1963): Based on the novel and followed the novel closely.
Goldfinger (1964): Based on the novel and followed the novel closely (except for the ending).
Thunderball (1965): Based on the novel and followed the novel closely.
You Only Live Twice (1967): Based on the novel but took only a few characters and locations; the core of the novel YOLT has never been filmed.
On Her Majesty’s Secret Service (1969): Based on the novel and followed the novel closely.
Diamonds Are Forever (1971): Based on the novel and followed the novel partially. Scenes, ideas, characters, and sequences were incorporated into the film, while large chunks were changed or discarded.
Live and Let Die (1973): Based on the novel and followed the novel only a little.
The Man With the Golden Gun (1974): Based on the novel and followed the novel only a little.
The Spy Who Loved Me (1977): By contractual obligation, only the title from the novel was used. Fleming wanted to make sure the novel TSWLM was never filmed.
Moonraker (1979): Based on the novel but took only a few characters and locations, however, see Die Another Day.
For Your Eyes Only (1981): Based on two Ian Fleming short stories. The stories “For Your Eyes Only” and “Risico” are followed quite closely. In addition, a sequence from the novel LALD is used.
Never Say Never Again (1983): Based on the novel Thunderball, it doesn’t follow the novel quite as closely as the movie TB, but it is pretty close.
Octopussy (1983): Based on the Ian Fleming short stories “Octopussy” and “Property of a Lady.” “Octopussy is followed hardly at all; most of the story is used as background and appears in the scene where Bond first meets Octopussy. “Property of a Lady” is followed more closely, and is contained in the sequences involving tracing the egg to an auction and attending the auction.
A View to a Kill (1985): Named for the Ian Fleming short story “From a View to a Kill,” it films exactly nothing from that story.
The Living Daylights (1987): Based on the Ian Fleming short story “The Living Daylights,” it follows that story very closely; the entire opening post-credits sequence (up to the drive to the pipeline) is almost identical to the story.
Licence to Kill (1989): This movie has the first original Bond movie title; that is, the first title that isn’t a Fleming novel or story. However, story components, scenes, and characters are derived from the short story “The Hildenbrandt Rarity” and the novel LALD.
GoldenEye (1995): Wholly original.
Tomorrow Never Dies (1997): Wholly original.
The World Is Not Enough (1999): Wholly original.
Die Another Day (2002): Based very closely on the novel Moonraker. In fact, the original name for the character Miranda Frost was released to the press as Gala Brand (the woman in MR). Although the story is modernized, the resemblance is still significant.
Casino Royale (2006): Based on the novel and followed the novel closely.

So let’s see what we’ve got:

Follows Fleming closely (novel or story/stories): 10
Follows Fleming only loosely: 8
Original: 4

So 18 out of 22 have some Fleming connection, 10 a very close connection. Only 4 (counting TSWLM) don’t follow source material at all.