Monthly Number Of Concerns
1939-01-01 1142.00
1939-02-01 879.000
1939-03-01 935.000
1939-04-01 950.000
1939-05-01 952.000
1939-06-01 792.000
1939-07-01 843.000
1939-08-01 813.000
1939-09-01 757.000
1939-10-01 901.000
1939-11-01 822.000
1939-12-01 798.000
1940-01-01 912.000
1940-02-01 744.000
1940-03-01 877.000
1940-04-01 895.000
1940-05-01 877.000
1940-06-01 798.000
1940-07-01 854.000
1940-08-01 834.000
1940-09-01 696.000
1940-10-01 796.000
1940-11-01 735.000
1940-12-01 793.000
1941-01-01 866.000
1941-02-01 823.000
1941-03-01 905.000
1941-04-01 853.000
1941-05-01 835.000
1941-06-01 717.000
1941-07-01 644.000
1941-08-01 666.000
1941-09-01 527.000
1941-10-01 585.000
1941-11-01 586.000
1941-12-01 627.000
1942-01-01 685.000
1942-02-01 659.000
1942-03-01 735.000
1942-04-01 689.000
1942-05-01 716.000
1942-06-01 554.000
1942-07-01 529.000
1942-08-01 466.000
1942-09-01 398.000
1942-10-01 470.000
1942-11-01 397.000
1942-12-01 351.000
1943-01-01 298.000
1943-02-01 289.000
1943-03-01 267.000
1943-04-01 219.000
1943-05-01 179.000
1943-06-01 162.000
1943-07-01 117.000
1943-08-01 148.000
1943-09-01 73.0000
1943-10-01 93.0000
1943-11-01 89.0000
1943-12-01 84.0000
1944-01-01 63.0000
1944-02-01 59.0000
1944-03-01 48.0000
1944-04-01 65.0000
1944-05-01 74.0000
1944-06-01 58.0000
1944-07-01 49.0000
1944-08-01 37.0000
1944-09-01 31.0000
1944-10-01 29.0000
1944-11-01 27.0000
1944-12-01 47.0000
1945-01-01 28.0000
1945-02-01 30.0000
1945-03-01 44.0000
1945-04-01 49.0000
1945-05-01 34.0000
1945-06-01 32.0000
1945-07-01 35.0000
1945-08-01 22.0000
1945-09-01 19.0000
1945-10-01 22.0000
1945-11-01 24.0000
1945-12-01 12.0000
1946-01-01 25.0000
1946-02-01 36.0000
1946-03-01 27.0000
1946-04-01 35.0000
1946-05-01 30.0000
1946-06-01 28.0000
1946-07-01 22.0000
1946-08-01 31.0000
1946-09-01 36.0000
1946-10-01 38.0000
1946-11-01 44.0000
1946-12-01 51.0000
1947-01-01 103.000
1947-02-01 104.000
1947-03-01 112.000
1947-04-01 121.000
1947-05-01 170.000
1947-06-01 144.000
1947-07-01 145.000
1947-08-01 146.000
1947-09-01 143.000
1947-10-01 184.000
1947-11-01 141.000
1947-12-01 156.000
1948-01-01 196.000
1948-02-01 200.000
1948-03-01 251.000
1948-04-01 225.000
1948-05-01 230.000
1948-06-01 248.000
1948-07-01 228.000
1948-08-01 255.000
1948-09-01 225.000
1948-10-01 257.000
1948-11-01 263.000
1948-12-01 276.000
1949-01-01 343.000
1949-02-01 408.000
1949-03-01 468.000
1949-04-01 504.000
1949-05-01 452.000
1949-06-01 464.000
1949-07-01 421.000
1949-08-01 481.000
1949-09-01 411.000
1949-10-01 473.000
1949-11-01 492.000
1949-12-01 439.000
1950-01-01 513.000
1950-02-01 499.000
1950-03-01 518.000
1950-04-01 491.000
1950-05-01 535.000
1950-06-01 430.000
1950-07-01 416.000
1950-08-01 472.000
1950-09-01 383.000
1950-10-01 402.000
1950-11-01 379.000
1950-12-01 407.000
1951-01-01 483.000
1951-02-01 373.000
1951-03-01 465.000
1951-04-01 441.000
1951-05-01 469.000
1951-06-01 456.000
1951-07-01 406.000
1951-08-01 397.000
1951-09-01 347.000
1951-10-01 351.000
1951-11-01 365.000
1951-12-01 362.000
1952-01-01 410.000
1952-02-01 364.000
1952-03-01 440.000
1952-04-01 458.000
1952-05-01 392.000
1952-06-01 413.000
1952-07-01 358.000
1952-08-01 376.000
1952-09-01 346.000
1952-10-01 345.000
1952-11-01 346.000
1952-12-01 333.000
1953-01-01 400.000
1953-02-01 424.000
1953-03-01 437.000
1953-04-01 419.000
1953-05-01 418.000
1953-06-01 499.000
1953-07-01 453.000
1953-08-01 411.000
1953-09-01 421.000
1953-10-01 488.000
1953-11-01 477.000
1953-12-01 467.000
1954-01-01 529.000
1954-02-01 536.000
1954-03-01 674.000
1954-04-01 617.000
1954-05-01 551.000
1954-06-01 544.000
1954-07-01 516.000
1954-08-01 545.000
1954-09-01 519.000
1954-10-01 505.000
1954-11-01 576.000
1954-12-01 511.000
1955-01-01 570.000
1955-02-01 516.000
1955-03-01 639.000
1955-04-01 577.000
1955-05-01 586.000
1955-06-01 525.000
1955-07-01 512.000
1955-08-01 537.000
1955-09-01 465.000
1955-10-01 522.000
1955-11-01 546.000
1955-12-01 508.000
1956-01-01 641.000
1956-02-01 619.000
1956-03-01 694.000
1956-04-01 555.000
1956-05-01 693.000
1956-06-01 666.000
1956-07-01 625.000
1956-08-01 665.000
1956-09-01 574.000
1956-10-01 696.000
1956-11-01 576.000
1956-12-01 544.000
1957-01-01 703.000
1957-02-01 674.000
1957-03-01 793.000
1957-04-01 695.000
1957-05-01 732.000
1957-06-01 648.000
1957-07-01 644.000
1957-08-01 685.000
1957-09-01 631.000
1957-10-01 643.000
1957-11-01 673.000
1957-12-01 610.000
1958-01-01 806.000
1958-02-01 774.000
1958-03-01 891.000