Online Sponsorship and Advertising. We offer advertising services for our Medicare plan carriers to purchase advertising on a separate website developed, hosted and maintained by us for a pre-determined amount of time. In these instances, we are typically paid a fixed, up-front fee, which we recognize as revenue over the service period. We also derive revenue from online sponsorship and advertising programs that allows carriers to purchase advertising space in specific markets in a sponsorship area on our website. In return, we are typically paid a monthly fee and a performance-based fee based on metrics such as submitted health insurance applications.
We expect our general and administrative expenses to increase in absolute dollars in 2014 compared to 2013 as we add infrastructure to support company growth.
The following table shows certain selected quarterly metrics for 2012 and 2013:
The following table presents our customer care and enrollment expenses for the years ended December 31, 2011, 2012 and 2013 and the dollar and percentage changes from the prior year (dollars in thousands):
The following table presents our technology and content expenses for the years ended December 31, 2011, 2012 and 2013 and the dollar and percentage changes from the prior year (dollars in thousands):
Other income (expense), net, in 2011, 2012 and 2013 primarily consisted of interest income earned on our invested cash, cash equivalents and marketable securities balances, offset by administrative bank fees, investment management fees and interest expense on capital lease obligations.
2013-Net cash used in financing activities of $47.4 million during the year ended December 31, 2013 was due to $59.0 million used to repurchase 2.9 million shares of our common stock and $0.9 million used to net-share settle the tax obligation related to vesting equity awards, partially offset by $9.2 million of net proceeds from the exercise of common stock options and $3.4 million of excess tax benefits from stock-based compensation.
On September 10, 2012, we announced that our board of directors approved a stock repurchase program authorizing us to purchase up to $30 million of our common stock and on March 6, 2013, we announced that our board of directors increased the approved repurchase amount under this program to $60 million. Purchases under this program were made in the open market. The cost of the repurchased shares was funded from available working capital. We completed repurchasing common stock under this program in June 2013 having repurchased 2,957,179 shares for $60.0 million at an average price of $20.29 per share.
Commission revenue attributable to major medical individual and family health insurance plans was approximately 86%, 75% and 69% of our total commission revenue in the years ended December 31, 2011, 2012 and 2013, respectively. We define our individual and family plan offerings as major medical individual and family health insurance plans, which do not include Medicare-related health insurance plan offerings, small business or other ancillary products such as short-term, stand-alone dental, life, accident, vision, travel and student insurance plan offerings.