can i use google adwords without a website

It is mandatory to fill in a website. But no matter which site you are using.... As long as you don't activate anything, nothing happens.
Automated Adwords
Key Benefits
Give a on-demand amount depending on how much you invest
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Some Statistics

Approximatly 52 percent of visitors buying online choose to click on paid ad atop search engine results.

Google's share of media online advertising income : 18 %.

Visitors are 27 times more likely to click on online video ad than traditionnal banners.