Economists say the drop in the economic index could be because sales have dropped during the harsh winter weather.
More than 260 companies made job commitments in 2013 worth more than $2 billion.
Indiana's GDP is expected to grow 2.2 percent next year, compared to between 1.9 percent and 2.1 for the U.S.
An outlook from the Indiana Business Research Center predicts Indiana's economy will grow slightly faster than the national average.
Most metropolitan areas in Indiana saw their GDPs increase between 2011 and 2012.
Indiana legislators met Wednesday to discuss forming new legislation that would encourage economic development in rural areas.
The budget passed this year allocates an additional $1.1 million to encourage recycling in Indiana.
Convention organizers expect a total of 40,000 attendees over the four day conference.
Hoosier kids are healthier according to various indices, but 23 percent still live below the federal poverty level.
The private sector added 9,000 jobs in May, the largest single-month increase in more than a year.