Statistics may not turn you on, but still they may add something to your perspective on the game of bridge.   Employing standard bidding rules, following are frequencies with which you are dealt various categories of hands - expressed as number of hands per 100 deals:
 

Pass                                                     59.4

One-Level opener
           Five-card major                           14.6
           Minor                                         21.6

Strong two opener                                   0.2

Three/four level opener (pre-empts)            1.8

Notrump
          1 NT                                             2.3
          2 NT                                             0.1

 

The most obvious data bit is the pass (59 times per 100 deals); hence you get to open only four of every ten hands.  Would you like to increase this frequency without compromising the integrity of your bidding system?  Yes, of course you would!

The most productive modern tool in bridge is the weak-two opener.  Take this hand for instance:

ª 7 2
© K Q J 9 8 5
¨ 6 5
§ Q 8 7

Playing-strong two openers, there is nothing to be done but pass.  However it is my experience that the risk of opening a weak 2© here is nil and the compelling stat is that you get to open almost five more hands per hundred when you adopt these bids.  There is no other convention in bridge that produces such a huge benefit.  There is a cost however: you have to learn two conventions, weak-twos and the two-club convention (which replaces natural strong two openers).

It is interesting to note the impact of five-card majors.  One-level openers occur some 36% of the time (14.6 plus 21.6).  The five-card requirement for majors forces you to open minors more often.