- Export Amount of Phosphate Rock in United States in 1935Jan 15, 1936
- Export Amount of Phosphate Rock in United States in 1934Jan 15, 1935
- Export Amount of Phosphate Rock in United States in 1933Jan 15, 1934
- Export Amount of Phosphate Rock in United States in 1932Jan 15, 1933
- Export Amount of Phosphate Rock in United States in 1931Jan 15, 1932
- Export Amount of Phosphate Rock in United States in 1930Jan 15, 1931
- Export Amount of Phosphate Rock in United States in 1929Jan 15, 1930
- Export Amount of Phosphate Rock in United States in 1928Jan 15, 1929
- Export Amount of Phosphate Rock in United States in 1927Jan 15, 1928
- Export Amount of Phosphate Rock in United States in 1926Jan 15, 1927
- Export Amount of Phosphate Rock in United States in 1925Jan 15, 1926
- Export Amount of Phosphate Rock in United States in 1924Jan 15, 1925
- Export Amount of Phosphate Rock in United States in 1923Jan 15, 1924
- Export Amount of Phosphate Rock in United States in 1922Jan 15, 1923
- Export Amount of Phosphate Rock in United States in 1921Jan 15, 1922
- Export Amount of Phosphate Rock in United States in 1920Jan 15, 1921
- Export Amount of Phosphate Rock in United States in 1919Jan 15, 1920
- Export Amount of Phosphate Rock in United States in 1918Jan 15, 1919
- Export Amount of Phosphate Rock in United States in 1917Jan 15, 1918
- Export Amount of Phosphate Rock in United States in 1916Jan 15, 1917
- Export Amount of Phosphate Rock in United States in 1915Jan 15, 1916
- Export Amount of Phosphate Rock in United States in 1914Jan 15, 1915
- Export Amount of Phosphate Rock in United States in 1913Jan 15, 1914
- Export Amount of Phosphate Rock in United States in 1912Jan 15, 1913
- Export Amount of Phosphate Rock in United States in 1911Jan 15, 1912
- Export Amount of Phosphate Rock in United States in 1910Jan 15, 1911
- Export Amount of Phosphate Rock in United States in 1909Jan 15, 1910
- Export Amount of Phosphate Rock in United States in 1908Jan 15, 1909
- Export Amount of Phosphate Rock in United States in 1907Jan 15, 1908
- Export Amount of Phosphate Rock in United States in 1906Jan 15, 1907