The Birthdays of the Seniors are distributed within the 12 months of the calendar year.  When viewed graphically under a pie chart, the distribution is as follows:

April has the most number of births (10), followed by November (9), September (8), and July and February (7).

Conclusion: Allowing for 9 months pregnancy period, it is hereby concluded that July (one month after a June wedding) is the most popular month for impregnation, followed by February (the love month), December (Christmas season!), and May (summer vacation).

So what does it prove?