The winner is 2, at over 30%. Next are 3, at over 25%.
1-word keywords barely edge out a 4-word query at around 15%. 5 words rank at about 6+%, and the numbers drop significantly after this.
People are using 2 to 3 word phrases over half the time in their online searches. And a single word search is significant too. Good to know while grinding away on you PPC campaigns.
