Month Thousands Of Head 1907-01-01 128.000 1907-02-01 99.0000 1907-03-01 122.000 1907-04-01 205.000 1907-05-01 224.000 1907-06-01 204.000 1907-07-01 221.000 1907-08-01 206.000 1907-09-01 198.000 1907-10-01 187.000 1907-11-01 126.000 1907-12-01 104.000 1908-01-01 117.000 1908-02-01 88.0000 1908-03-01 137.000 1908-04-01 197.000 1908-05-01 205.000 1908-06-01 211.000 1908-07-01 192.000 1908-08-01 185.000 1908-09-01 187.000 1908-10-01 180.000 1908-11-01 143.000 1908-12-01 116.000 1909-01-01 135.000 1909-02-01 95.0000 1909-03-01 149.000 1909-04-01 200.000 1909-05-01 228.000 1909-06-01 236.000 1909-07-01 213.000 1909-08-01 196.000 1909-09-01 206.000 1909-10-01 205.000 1909-11-01 171.000 1909-12-01 155.000 1910-01-01 132.000 1910-02-01 117.000 1910-03-01 188.000 1910-04-01 222.000 1910-05-01 252.000 1910-06-01 238.000 1910-07-01 198.000 1910-08-01 206.000 1910-09-01 197.000 1910-10-01 188.000 1910-11-01 168.000 1910-12-01 132.000 1911-01-01 135.000 1911-02-01 121.000 1911-03-01 180.000 1911-04-01 218.000 1911-05-01 243.000 1911-06-01 232.000 1911-07-01 198.000 1911-08-01 207.000 1911-09-01 184.000 1911-10-01 180.000 1911-11-01 155.000 1911-12-01 128.000 1912-01-01 152.000 1912-02-01 126.000 1912-03-01 180.000 1912-04-01 245.000 1912-05-01 258.000 1912-06-01 229.000 1912-07-01 201.000 1912-08-01 192.000 1912-09-01 190.000 1912-10-01 193.000 1912-11-01 163.000 1912-12-01 149.000 1913-01-01 139.000 1913-02-01 118.000 1913-03-01 142.000 1913-04-01 212.000 1913-05-01 205.000 1913-06-01 195.000 1913-07-01 182.000 1913-08-01 149.000 1913-09-01 159.000 1913-10-01 157.000 1913-11-01 124.000 1913-12-01 122.000 1914-01-01 122.000 1914-02-01 100.000 1914-03-01 145.000 1914-04-01 186.000 1914-05-01 183.000 1914-06-01 187.000 1914-07-01 153.000 1914-08-01 129.000 1914-09-01 130.000 1914-10-01 135.000 1914-11-01 107.000 1914-12-01 119.000 1915-01-01 109.000 1915-02-01 96.0000 1915-03-01 156.000 1915-04-01 199.000 1915-05-01 205.000 1915-06-01 197.000 1915-07-01 162.000 1915-08-01 141.000 1915-09-01 139.000 1915-10-01 148.000 1915-11-01 141.000 1915-12-01 125.000 1916-01-01 129.000 1916-02-01 143.000 1916-03-01 189.000 1916-04-01 233.000 1916-05-01 267.000 1916-06-01 228.000 1916-07-01 178.000 1916-08-01 207.000 1916-09-01 186.000 1916-10-01 204.000 1916-11-01 217.000 1916-12-01 185.000 1917-01-01 203.000 1917-02-01 182.000 1917-03-01 212.000 1917-04-01 286.000 1917-05-01 345.000 1917-06-01 277.000 1917-07-01 277.000 1917-08-01 255.000 1917-09-01 272.000 1917-10-01 339.000 1917-11-01 281.000 1917-12-01 216.000 1918-01-01 210.000 1918-02-01 193.000 1918-03-01 260.000 1918-04-01 351.000 1918-05-01 357.000 1918-06-01 312.000 1918-07-01 355.000 1918-08-01 274.000 1918-09-01 317.000 1918-10-01 306.000 1918-11-01 272.000 1918-12-01 249.000 1919-01-01 295.000 1919-02-01 210.000 1919-03-01 295.000 1919-04-01 383.000 1919-05-01 391.000 1919-06-01 327.000 1919-07-01 400.000 1919-08-01 319.000 1919-09-01 318.000 1919-10-01 375.000 1919-11-01 344.000 1919-12-01 312.000 1920-01-01 305.000 1920-02-01 283.000 1920-03-01 390.000 1920-04-01 382.000 1920-05-01 369.000 1920-06-01 431.000 1920-07-01 343.000 1920-08-01 332.000 1920-09-01 348.000 1920-10-01 315.000 1920-11-01 316.000 1920-12-01 245.000 1921-01-01 282.000 1921-02-01 254.000 1921-03-01 360.000 1921-04-01 366.000 1921-05-01 367.000 1921-06-01 370.000 1921-07-01 324.000 1921-08-01 304.000 1921-09-01 321.000 1921-10-01 309.000 1921-11-01 292.000 1921-12-01 259.000 1922-01-01 288.000 1922-02-01 279.000 1922-03-01 391.000 1922-04-01 365.000 1922-05-01 401.000 1922-06-01 389.000 1922-07-01 329.000 1922-08-01 345.000 1922-09-01 353.000 1922-10-01 383.000 1922-11-01 348.000 1922-12-01 309.000 1923-01-01 351.000 1923-02-01 297.000 1923-03-01 368.000 1923-04-01 400.000 1923-05-01 467.000 1923-06-01 388.000 1923-07-01 379.000 1923-08-01 403.000 1923-09-01 338.000 1923-10-01 416.000 1923-11-01 370.000 1923-12-01 324.000 1924-01-01 373.000 1924-02-01 346.000 1924-03-01 377.000 1924-04-01 466.000 1924-05-01 470.000 1924-06-01 408.000 1924-07-01 421.000 1924-08-01 374.000 1924-09-01 419.000 1924-10-01 473.000 1924-11-01 392.000 1924-12-01 416.000 1925-01-01 394.000 1925-02-01 378.000 1925-03-01 466.000 1925-04-01 496.000 1925-05-01 481.000 1925-06-01 474.000 1925-07-01 473.000 1925-08-01 439.000 1925-09-01 423.000 1925-10-01 486.000 1925-11-01 398.000 1925-12-01 445.000 1926-01-01 410.000 1926-02-01 378.000 1926-03-01 464.000 1926-04-01 462.000 1926-05-01 455.000 1926-06-01 480.000 1926-07-01 426.000 1926-08-01 379.000 1926-09-01 408.000 1926-10-01 446.000 1926-11-01 435.000 1926-12-01 410.000 1927-01-01 397.000 1927-02-01 377.000 1927-03-01 457.000 1927-04-01 454.000 1927-05-01 462.000 1927-06-01 430.000 1927-07-01 355.000 1927-08-01 389.000 1927-09-01 357.000 1927-10-01 413.000 1927-11-01 410.000 1927-12-01 376.000 1928-01-01 383.000 1928-02-01 374.000 1928-03-01 407.000 1928-04-01 438.000 1928-05-01 473.000 1928-06-01 398.000 1928-07-01 362.000 1928-08-01 369.000 1928-09-01 352.000 1928-10-01 405.000 1928-11-01 378.000 1928-12-01 341.000 1929-01-01 369.000 1929-02-01 311.000 1929-03-01 409.000 1929-04-01 460.000 1929-05-01 427.000 1929-06-01 344.000 1929-07-01 363.000 1929-08-01 338.000 1929-09-01 365.000 1929-10-01 398.000 1929-11-01 358.000 1929-12-01 346.000 1930-01-01 374.000 1930-02-01 329.000 1930-03-01 388.000 1930-04-01 455.000 1930-05-01 421.000 1930-06-01 356.000 1930-07-01 375.000 1930-08-01 363.000 1930-09-01 374.000 1930-10-01 438.000 1930-11-01 324.000 1930-12-01 398.000 1931-01-01 379.000 1931-02-01 353.000 1931-03-01 416.000 1931-04-01 471.000 1931-05-01 425.000 1931-06-01 417.000 1931-07-01 356.000 1931-08-01 357.000 1931-09-01 393.000 1931-10-01 407.000 1931-11-01 355.000 1931-12-01 388.000 1932-01-01 347.000 1932-02-01 358.000 1932-03-01 420.000 1932-04-01 428.000 1932-05-01 399.000 1932-06-01 394.000 1932-07-01 324.000 1932-08-01 362.000 1932-09-01 366.000 1932-10-01 389.000 1932-11-01 376.000 1932-12-01 327.000 1933-01-01 345.000 1933-02-01 317.000 1933-03-01 398.000 1933-04-01 426.000 1933-05-01 476.000 1933-06-01 441.000 1933-07-01 401.000 1933-08-01 416.000 1933-09-01 405.000 1933-10-01 455.000 1933-11-01 424.000 1933-12-01 402.000 1934-01-01 471.000 1934-02-01 437.000 1934-03-01 534.000 1934-04-01 526.000 1934-05-01 600.000 1934-06-01 602.000 1934-07-01 774.000 1934-08-01 990.000 1934-09-01 844.000 1934-10-01 660.000 1934-11-01 522.000 1934-12-01 494.000 1935-01-01 512.000 1935-02-01 391.000 1935-03-01 471.000 1935-04-01 512.000 1935-05-01 508.000 1935-06-01 439.000 1935-07-01 464.000 1935-08-01 472.000 1935-09-01 458.000 1935-10-01 531.000 1935-11-01 480.000 1935-12-01 481.000 1936-01-01 465.000 1936-02-01 405.000 1936-03-01 483.000 1936-04-01 525.000 1936-05-01 503.000 1936-06-01 517.000 1936-07-01 523.000 1936-08-01 541.000 1936-09-01 553.000 1936-10-01 585.000 1936-11-01 477.000 1936-12-01 494.000 1937-01-01 484.000 1937-02-01 437.000 1937-03-01 592.000 1937-04-01 588.000 1937-05-01 561.000 1937-06-01 579.000 1937-07-01 520.000 1937-08-01 538.000 1937-09-01 537.000 1937-10-01 525.000 1937-11-01 468.000 1937-12-01 452.000 1938-01-01 420.000 1938-02-01 398.000 1938-03-01 506.000 1938-04-01 502.000 1938-05-01 500.000 1938-06-01 475.000 1938-07-01 436.000 1938-08-01 457.000 1938-09-01 453.000 1938-10-01 470.000 1938-11-01 457.000 1938-12-01 417.000 1939-01-01 415.000 1939-02-01 385.000 1939-03-01 478.000 1939-04-01 457.000 1939-05-01 509.000 1939-06-01 448.000 1939-07-01 417.000 1939-08-01 414.000 1939-09-01 427.000 1939-10-01 482.000 1939-11-01 450.000 1939-12-01 381.000 1940-01-01 416.000 1940-02-01 378.000 1940-03-01 440.000 1940-04-01 480.000 1940-05-01 501.000 1940-06-01 437.000 1940-07-01 457.000 1940-08-01 432.000 1940-09-01 412.000 1940-10-01 507.000 1940-11-01 462.000 1940-12-01 437.000 1941-01-01 411.000 1941-02-01 384.000 1941-03-01 444.000 1941-04-01 507.000 1941-05-01 501.000 1941-06-01 440.000 1941-07-01 445.000 1941-08-01 414.000 1941-09-01 447.000 1941-10-01 536.000 1941-11-01 476.000 1941-12-01 457.000 1942-01-01 440.000 1942-02-01 392.000 1942-03-01 491.000 1942-04-01 502.000 1942-05-01 471.000 1942-06-01 475.000 1942-07-01 461.000 1942-08-01 460.000 1942-09-01 513.000 1942-10-01 578.000 1942-11-01 501.000 1942-12-01 476.000 1943-01-01 340.000 1943-02-01 331.000 1943-03-01 410.000 1943-04-01 365.000 1943-05-01 328.000 1943-06-01 327.000 1943-07-01 335.000 1943-08-01 434.000 1943-09-01 532.000 1943-10-01 655.000 1943-11-01 625.000 1943-12-01 529.000 1944-01-01 468.000 1944-02-01 441.000 1944-03-01 565.000 1944-04-01 555.000 1944-05-01 541.000 1944-06-01 594.000 1944-07-01 634.000 1944-08-01 756.000 1944-09-01 753.000 1944-10-01 920.000 1944-11-01 874.000 1944-12-01 669.000 1945-01-01 560.000 1945-02-01 442.000 1945-03-01 575.000 1945-04-01 477.000 1945-05-01 522.000 1945-06-01 486.000 1945-07-01 482.000 1945-08-01 603.000 1945-09-01 666.000 1945-10-01 877.000 1945-11-01 783.000 1945-12-01 548.000 1946-01-01 440.000 1946-02-01 427.000 1946-03-01 484.000 1946-04-01 445.000 1946-05-01 402.000 1946-06-01 306.000 1946-07-01 542.000 1946-08-01 534.000 1946-09-01 364.000 1946-10-01 651.000 1946-11-01 656.000 1946-12-01 591.000 1947-01-01 591.000 1947-02-01 521.000 1947-03-01 644.000 1947-04-01 678.000 1947-05-01 627.000 1947-06-01 621.000 1947-07-01 656.000 1947-08-01 628.000 1947-09-01 719.000 1947-10-01 813.000 1947-11-01 762.000 1947-12-01 673.000 1948-01-01 586.000 1948-02-01 511.000 1948-03-01 566.000 1948-04-01 550.000 1948-05-01 509.000 1948-06-01 620.000 1948-07-01 577.000 1948-08-01 569.000 1948-09-01 599.000 1948-10-01 633.000 1948-11-01 614.000 1948-12-01 572.000 1949-01-01 484.000 1949-02-01 476.000 1949-03-01 619.000 1949-04-01 562.000 1949-05-01 510.000 1949-06-01 533.000 1949-07-01 501.000 1949-08-01 549.000 1949-09-01 552.000 1949-10-01 568.000 1949-11-01 585.000 1949-12-01 510.000 1950-01-01 465.000 1950-02-01 443.000 1950-03-01 586.000 1950-04-01 494.000 1950-05-01 496.000 1950-06-01 485.000 1950-07-01 443.000 1950-08-01 484.000 1950-09-01 488.000 1950-10-01 515.000 1950-11-01 505.000 1950-12-01 446.000 1951-01-01 433.000 1951-02-01 375.000 1951-03-01 447.000 1951-04-01 406.000 1951-05-01 414.000 1951-06-01 406.000 1951-07-01 408.000 1951-08-01 422.000 1951-09-01 373.000 1951-10-01 500.000 1951-11-01 457.000 1951-12-01 344.000 1952-01-01 382.000 1952-02-01 343.000 1952-03-01 397.000 1952-04-01 405.000 1952-05-01 388.000