With reference of the Indian economy after the 1991 economic liberalization, consider the following statements: 1. Worker productivity (per worker at 2004-05 prices) increased in urban areas while it decreased in rural areas. 2. The percentage share of rural areas in the workforce steadily increased. 3. In rural areas, the growth in non-farm economy increased. 4. The growth rate in rural employment decreased. Which of the statements given above is/are correct?