Month	Millions Of Manhours
1947-01-01	2078.00
1947-02-01	2046.00
1947-03-01	2052.00
1947-04-01	2041.00
1947-05-01	2074.00
1947-06-01	2093.00
1947-07-01	2108.00
1947-08-01	2133.00
1947-09-01	2127.00
1947-10-01	2140.00
1947-11-01	2119.00
1947-12-01	2149.00
1948-01-01	2102.00
1948-02-01	2087.00
1948-03-01	2111.00
1948-04-01	2132.00
1948-05-01	2118.00
1948-06-01	2179.00
1948-07-01	2211.00
1948-08-01	2235.00
1948-09-01	2169.00
1948-10-01	2153.00
1948-11-01	2167.00
1948-12-01	2170.00
1949-01-01	2087.00
1949-02-01	2072.00
1949-03-01	2066.00
1949-04-01	2064.00
1949-05-01	2062.00
1949-06-01	2074.00
1949-07-01	2078.00
1949-08-01	2137.00
1949-09-01	2120.00
1949-10-01	2108.00
1949-11-01	2124.00
1949-12-01	2129.00
1950-01-01	2067.00
1950-02-01	2080.00
1950-03-01	2087.00
1950-04-01	2093.00
1950-05-01	2125.00
1950-06-01	2177.00
1950-07-01	2206.00
1950-08-01	2286.00
1950-09-01	2231.00
1950-10-01	2206.00
1950-11-01	2218.00
1950-12-01	2220.00
1951-01-01	2181.00
1951-02-01	2176.00
1951-03-01	2214.00
1951-04-01	2208.00
1951-05-01	2244.00
1951-06-01	2230.00
1951-07-01	2298.00
1951-08-01	2319.00
1951-09-01	2253.00
1951-10-01	2236.00
1951-11-01	2230.00
1951-12-01	2261.00
1952-01-01	2202.00
1952-02-01	2206.00
1952-03-01	2198.00
1952-04-01	2192.00
1952-05-01	2240.00
1952-06-01	2255.00
1952-07-01	2262.00
1952-08-01	2305.00
1952-09-01	2288.00
1952-10-01	2273.00
1952-11-01	2304.00
1952-12-01	2332.00
1953-01-01	2265.00
1953-02-01	2262.00
1953-03-01	2279.00
1953-04-01	2265.00
1953-05-01	2279.00
1953-06-01	2318.00
1953-07-01	2337.00
1953-08-01	2361.00
1953-09-01	2301.00
1953-10-01	2294.00
1953-11-01	2290.00
1953-12-01	2275.00
1954-01-01	2202.00
1954-02-01	2189.00
1954-03-01	2183.00
1954-04-01	2198.00
1954-05-01	2189.00
1954-06-01	2215.00
1954-07-01	2223.00
1954-08-01	2263.00
1954-09-01	2214.00
1954-10-01	2220.00
1954-11-01	2258.00
1954-12-01	2262.00
1955-01-01	2208.00
1955-02-01	2225.00
1955-03-01	2229.00
1955-04-01	2232.00
1955-05-01	2271.00
1955-06-01	2291.00
1955-07-01	2366.00
1955-08-01	2391.00
1955-09-01	2351.00
1955-10-01	2346.00
1955-11-01	2360.00
1955-12-01	2386.00
1956-01-01	2328.00
1956-02-01	2304.00
1956-03-01	2314.00
1956-04-01	2337.00
1956-05-01	2354.00
1956-06-01	2396.00
1956-07-01	2435.00
1956-08-01	2468.00
1956-09-01	2418.00
1956-10-01	2434.00
1956-11-01	2415.00
1956-12-01	2421.00
1957-01-01	2335.00
1957-02-01	2343.00
1957-03-01	2361.00
1957-04-01	2369.00
1957-05-01	2370.00
1957-06-01	2418.00
1957-07-01	2443.00
1957-08-01	2460.00
1957-09-01	2414.00
1957-10-01	2396.00
1957-11-01	2380.00
1957-12-01	2372.00
1958-01-01	2278.00
1958-02-01	2258.00
1958-03-01	2272.00
1958-04-01	2271.00
1958-05-01	2312.00
1958-06-01	2341.00
1958-07-01	2362.00
1958-08-01	2397.00
1958-09-01	2384.00
1958-10-01	2391.00
1958-11-01	2376.00
1958-12-01	2388.00
1959-01-01	2326.00
1959-02-01	2310.00
1959-03-01	2345.00
1959-04-01	2378.00
1959-05-01	2408.00
1959-06-01	2447.00
1959-07-01	2479.00
1959-08-01	2508.00
1959-09-01	2446.00
1959-10-01	2453.00
1959-11-01	2420.00
1959-12-01	2448.00
1960-01-01	2376.00
1960-02-01	2378.00
1960-03-01	2376.00
1960-04-01	2437.00
1960-05-01	2461.00
1960-06-01	2506.00
1960-07-01	2522.00
1960-08-01	2535.00
1960-09-01	2484.00
1960-10-01	2487.00
1960-11-01	2448.00
1960-12-01	2442.00
1961-01-01	2387.00
1961-02-01	2386.00
1961-03-01	2409.00
1961-04-01	2417.00
1961-05-01	2443.00
1961-06-01	2500.00
1961-07-01	2513.00
1961-08-01	2526.00
1961-09-01	2473.00
1961-10-01	2512.00
1961-11-01	2492.00
1961-12-01	2494.00
1962-01-01	2389.00
1962-02-01	2442.00
1962-03-01	2455.00
1962-04-01	2475.00
1962-05-01	2524.00
1962-06-01	2574.00
1962-07-01	2584.00
1962-08-01	2605.00
1962-09-01	2568.00
1962-10-01	2556.00
1962-11-01	2530.00
1962-12-01	2546.00
1963-01-01	2469.00
1963-02-01	2480.00
1963-03-01	2500.00
1963-04-01	2537.00
1963-05-01	2568.00
1963-06-01	2613.00
1963-07-01	2641.00
1963-08-01	2642.00
1963-09-01	2601.00
1963-10-01	2601.00
1963-11-01	2595.00
1963-12-01	2589.00
1964-01-01	2485.00
1964-02-01	2544.00
1964-03-01	2574.00
1964-04-01	2618.00
1964-05-01	2644.00
1964-06-01	2664.00
1964-07-01	2710.00
1964-08-01	2708.00
1964-09-01	2616.00
1964-10-01	2653.00
1964-11-01	2663.00
1964-12-01	2670.00
1965-01-01	2617.00
1965-02-01	2621.00
1965-03-01	2647.00
1965-04-01	2664.00
1965-05-01	2711.00
1965-06-01	2751.00
1965-07-01	2818.00
1965-08-01	2825.00
1965-09-01	2754.00
1965-10-01	2757.00
1965-11-01	2755.00
1965-12-01	2778.00
1966-01-01	2699.00
1966-02-01	2711.00
1966-03-01	2737.00
1966-04-01	2763.00
1966-05-01	2786.00
1966-06-01	2871.00
1966-07-01	2920.00
1966-08-01	2938.00