[Dazrin]

I see a couple duplicates now that I am looking closer:
From 1901-1910: Call of the Wild/The Call of the Wild are duplicated.
From 1971-1980: Roadside Picnic is duplicated.

As for voting by fully read books my options are limited to one for a couple decades although there are a bunch that I have wanted to try or have tried and abandoned.

Spoiler:

1901-1910
Anne of Green Gables (BearMountainBooks)
Hound of the Baskervilles (frddgls)
The Call of the Wild (Synamon) / Call of the Wild (Katsunami)

1911-1920
The Secret Garden (Synamon)

1921-1930
Nancy Drew: The Secret of the Clock (BearMountainBooks)
Winnie the Pooh (gmw)
Murder at the Vicarage (disconnected)

1931-1940
The Big Sleep (Rizla)
The Hobbit (HomeInMyShoes)
Of Mice and Men (spellbanisher)

1941-1950
Nineteen Eighty-Four (treadlightly)
The Lion, the Witch, and the Wardrobe (AnemicOak)

1951-1960
The Lord Of The Rings (cadele)

1961-1970
Charlie and the Chocolate Factory (treadlightly)
Dune (Ralph Sir Edward)
Where the Wild Things Are (spellbanisher)
The Left Hand of Darkness (caleb72)
A Wizard of Earthsea (pdurrant)
The Giving Tree (curtw)

1971-1980
Roadside Picnic (Rizla)
The Hitchhiker's Guide to the Galaxy (poohbear_nc)
Roadside Picnic (Geralt)
The Princess Bride (Synamon)
Rendezvous with Rama (EndlessWaves)
The Dispossessed (spellbanisher)

1981-1990
Good Omens: The Nice and Accurate Prophecies of Agnes Nutter, Witch (Geralt)
Red Storm Rising (gbm)
The Hunt for Red October (EndlessWaves)
Watchmen (sun surfer)
The Elfstones of Shannara (Katsunami)
Agent of Change (bfisher)

1991-2000
Harry Potter and the Philosopher's Stone (dickloraine)
Cryptonomicon (GeoffR)
A Game of Thrones (Geralt)
Snow Crash (spellbanisher)