1900s - 1970s... This isn't a decade, its several. But I've tried to even out the number of cards so that I have a variety to pick from for each decade. Even with almost 80 years worth of cards, this slot is the smallest in my collection, only 1,570 cards. There's two simple reasons for the small number: there aren't as many cards available and many that are have prices way outside the WW budget.
The first card I have list a reprint of a T206 of George Brown and the last is Jerry White from 1979's Topps set.
1980's... This decade is the second smallest by numbers. Even though we've added Fleer, Donruss, Leaf, and Upper Deck, we still aren't approaching the numbers from the junk wax era. My 1980s total is 2031 cards.
The decade begins with Cramer's Baseball Legends card of the Rifleman and end with Steve Wilson in Upper Deck's debut set.
1990s... Now were getting into some serious numbers. In fact, the 1990s leads all decades in my collection with 4182 cards. That's double the 80's.
2000s...The new millenium brought nearly as many cards as the 1990s, a total of 3540 Cubs.
2010s...With this decade half over, I've got 2029 Cubs cards. If I keep up the same pace, the 2010s could challenge the 1990s for top spot. I doubt that I will be able to add as many cards over the next five years. Early on in the 2010s I was going parallel and relic/auto crazy. I also had the Darwin Barney collection. I've relaxed with the parallels and there won't be any new Barneys to collect. My guess is that the 2010s will end up in the #2 slot.
Tyler Colvin's 2010 Allen and Ginter card leads off and Anthony Rizzo's 2014 Turkey Red card brings up the rear.
And here are the totals:
1900s - 1970s: 1570 cards
1980s: 2031 cards
1990s: 4182 cards
2000s: 3540 cards
2010s: 2029 cards
WW Cubs total: 13,352 cards