Each month, the Visa Office subdivides the annual preference and foreign state limitations specified by the INA into monthly allotments based on totals of documentarily qualified immigrant visa applicants reported at consular posts and CIS Offices, grouped by foreign state chargeability, preference category, and priority date.
I had my interview at the Dallas DO today May 14th. It went very well. I was very nervous about my extensive travel over the past 5 years. I had some 800 odd days of travel that included trips to a lot of countries in the world. But none of my trips was over 6 months, the maximum trip length was 110 days. I was working for a US company as a contractor and did have a letter from the company for the reason for the numerous visits.