U.S. Citizenship and Immigration Services will begin accepting H-1B petitions subject to the fiscal year 2018 cap on April 3, 2017. All cap-subject H-1B petitions filed before April 3, 2017, for the FY 2018 cap will be rejected.
USCIS Annual Report on Characteristics of Specialty Occupation Workers (H-1B) for Fiscal Year 2009 to Congress. The report includes information on countries of origin and occupations of, education levels attained by, and compensation paid to H-1B beneficiaries.
Please check the attached document.