"c           VAR 0007      01008 PHY PRO 1R 863-921               MD= 1E-37   "
"c           REF 0007         LOC   24 WIDTH  9             DK   1 COL 26-34  "
"c                                                 EXP DEC=  1                "
"c                                                                            "
"c              INDEX OF TOTAL PHYSICAL PRODUCTION                            "
"c              ----------------------------------                            "
"c                                                                            "
"c              NBER SERIES:  01008                                           "
"c              AREA COVERED:  U.S.                                           "
"c              UNITS:  1909-1913=100                                         "
"c              ANNUAL COVERAGE:  1863-1921                                   "
"c              QUARTERLY COVERAGE:  NONE                                     "
"c              MONTHLY COVERAGE:  NONE                                       "
"c              SEASONAL ADJUSTMENT:  NONE                                    "
"c              SOURCE:  WARREN M. PERSONS, FORECASTING BUSINESS CYCLES,      "
"c              1931, PP. 170-171.                                            "
"c                                                                            "
"c              NOTES:  SERIES 01008 IS PRESENTED HERE AS TWO                 "
"c              VARIABLES-(1)--ORIGINAL DATA DATA, 1863-1921  (2)--ORIGINAL   "
"c              DATA, 1921-1932.                                              "
"c                                                                            "
"c              CHECKED MANUALLY; NO CORRECTIONS NECESSARY.                   " 
"c                                                                            "
"c           ...............................................................  "
-1
1863.
1921.
10.0000
11.1000
13.1000
15.6000
16.5000
17.5000
18.9000
19.7000
19.2000
22.3000
22.2000
21.3000
24.0000
23.9000
26.4000
28.2000
30.1000
34.5000
31.4000
37.9000
37.5000
39.1000
38.6000
41.0000
41.5000
44.8000
48.2000
47.2000
55.0000
51.6000
48.7000
47.8000
57.1000
56.5000
60.3000
65.5000
66.7000
67.4000
68.1000
79.0000
77.5000
80.2000
88.7000
94.1000
90.8000
83.0000
94.3000
97.4000
93.3000
108.300
106.700
105.800
115.200
123.300
126.800
125.900
123.600
133.100
105.700