Figure 16: H-P filtered TSI, January 1979 to July 2005

Figure 16: H-P filtered TSI, January 1979 to July 2005

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  TSI passenger H-P TSI freight H-P
Sep-79 2.6 2.5
Oct-79 2.4 2.3
Nov-79 2.1 2.1
Dec-79 1.7 1.8
Jan-80 1.3 1.6
Feb-80 0.9 1.0
Mar-80 0.6 0.1
Apr-80 0.3 -1.1
May-80 0.2 -2.2
Jun-80 0.2 -3.1
Jul-80 0.2 -3.5
Aug-80 0.2 -3.1
Sep-80 0.1 -2.3
Oct-80 -0.1 -1.0
Nov-80 -0.4 0.3
Dec-80 -0.7 1.3
Jan-81 -1.0 2.0
Feb-81 -1.0 2.3
Mar-81 -0.9 2.3
Apr-81 -0.7 2.0
May-81 -0.6 1.7
Jun-81 -0.6 1.4
Jul-81 -0.7 1.1
Aug-81 -0.9 0.8
Sep-81 -1.1 0.5
Oct-81 -1.2 -0.1
Nov-81 -1.2 -0.7
Dec-81 -1.2 -1.3
Jan-82 -1.3 -2.0
Feb-82 -1.4 -2.4
Mar-82 -1.6 -2.7
Apr-82 -1.8 -2.8
May-82 -2.0 -2.7
Jun-82 -2.1 -2.7
Jul-82 -2.1 -2.7
Aug-82 -2.2 -2.9
Sep-82 -2.1 -3.2
Oct-82 -2.0 -3.5
Nov-82 -1.7 -3.8
Dec-82 -1.3 -3.9
Jan-83 -0.9 -3.8
Feb-83 -0.6 -3.4
Mar-83 -0.4 -2.9
Apr-83 -0.5 -2.3
May-83 -0.6 -1.6
Jun-83 -0.8 -0.9
Jul-83 -0.8 -0.5
Aug-83 -0.8 -0.3
Sep-83 -0.7 -0.2
Oct-83 -0.7 0.0
Nov-83 -0.7 0.3
Dec-83 -0.8 0.8
Jan-84 -0.8 1.5
Feb-84 -0.8 2.2
Mar-84 -0.8 2.7
Apr-84 -0.7 3.0
May-84 -0.5 3.0
Jun-84 -0.4 2.8
Jul-84 -0.2 2.5
Aug-84 0.0 2.2
Sep-84 0.2 1.8
Oct-84 0.3 1.4
Nov-84 0.2 0.9
Dec-84 0.1 0.3
Jan-85 0.0 -0.2
Feb-85 0.0 -0.7
Mar-85 0.2 -1.0
Apr-85 0.5 -1.3
May-85 0.6 -1.5
Jun-85 0.4 -1.8
Jul-85 0.1 -2.0
Aug-85 -0.3 -2.2
Sep-85 -0.6 -2.3
Oct-85 -0.6 -2.3
Nov-85 -0.4 -2.2
Dec-85 -0.1 -2.1
Jan-86 0.2 -1.9
Feb-86 0.2 -1.8
Mar-86 0.1 -1.7
Apr-86 -0.1 -1.6
May-86 -0.3 -1.5
Jun-86 -0.3 -1.3
Jul-86 -0.3 -1.0
Aug-86 -0.2 -0.8
Sep-86 0.0 -0.7
Oct-86 0.1 -0.6
Nov-86 0.3 -0.6
Dec-86 0.7 -0.5
Jan-87 1.1 -0.3
Feb-87 1.5 0.0
Mar-87 1.9 0.2
Apr-87 2.1 0.3
May-87 2.2 0.5
Jun-87 2.0 0.7
Jul-87 1.8 1.1
Aug-87 1.4 1.7
Sep-87 1.1 2.3
Oct-87 0.8 2.9
Nov-87 0.6 3.4
Dec-87 0.5 3.7
Jan-88 0.6 3.9
Feb-88 0.7 3.9
Mar-88 0.9 4.0
Apr-88 1.0 4.0
May-88 1.1 3.9
Jun-88 1.1 3.8
Jul-88 1.1 3.6
Aug-88 1.1 3.4
Sep-88 1.0 3.3
Oct-88 0.9 3.1
Nov-88 0.7 3.0
Dec-88 0.4 2.7
Jan-89 0.1 2.3
Feb-89 -0.2 1.9
Mar-89 -0.3 1.4
Apr-89 -0.2 0.9
May-89 0.1 0.5
Jun-89 0.5 -0.1
Jul-89 0.8 -0.5
Aug-89 1.0 -0.9
Sep-89 1.1 -1.2
Oct-89 1.3 -1.3
Nov-89 1.6 -1.2
Dec-89 1.9 -1.0
Jan-90 2.1 -0.7
Feb-90 2.2 -0.4
Mar-90 2.0 -0.1
Apr-90 1.7 0.2
May-90 1.3 0.4
Jun-90 1.0 0.4
Jul-90 0.9 0.3
Aug-90 1.0 0.0
Sep-90 1.1 -0.4
Oct-90 1.0 -1.0
Nov-90 0.6 -1.7
Dec-90 -0.3 -2.4
Jan-91 -1.2 -3.0
Feb-91 -2.0 -3.5
Mar-91 -2.3 -3.7
Apr-91 -2.2 -3.7
May-91 -1.6 -3.2
Jun-91 -1.1 -2.6
Jul-91 -0.7 -1.9
Aug-91 -0.5 -1.3
Sep-91 -0.5 -1.1
Oct-91 -0.6 -1.1
Nov-91 -0.6 -1.3
Dec-91 -0.8 -1.4
Jan-92 -1.0 -1.3
Feb-92 -1.2 -0.9
Mar-92 -1.2 -0.5
Apr-92 -0.8 -0.2
May-92 -0.1 -0.1
Jun-92 0.7 -0.1
Jul-92 1.3 -0.4
Aug-92 1.4 -0.7
Sep-92 1.0 -0.9
Oct-92 0.4 -1.0
Nov-92 -0.3 -0.9
Dec-92 -0.7 -0.8
Jan-93 -1.0 -0.6
Feb-93 -1.1 -0.6
Mar-93 -1.2 -0.7
Apr-93 -1.4 -1.0
May-93 -1.5 -1.4
Jun-93 -1.5 -1.7
Jul-93 -1.4 -1.9
Aug-93 -1.2 -2.0
Sep-93 -1.0 -1.7
Oct-93 -0.8 -1.4
Nov-93 -0.8 -1.1
Dec-93 -1.0 -1.0
Jan-94 -1.1 -1.1
Feb-94 -1.2 -1.2
Mar-94 -1.2 -1.3
Apr-94 -1.0 -1.0
May-94 -0.8 -0.6
Jun-94 -0.6 0.0
Jul-94 -0.4 0.7
Aug-94 -0.2 1.5
Sep-94 0.0 2.7
Oct-94 0.2 4.3
Nov-94 0.3 6.0
Dec-94 0.2 7.0
Jan-95 -0.2 7.3
Feb-95 -0.6 6.5
Mar-95 -1.1 4.9
Apr-95 -1.5 3.3
May-95 -1.8 2.1
Jun-95 -1.9 1.4
Jul-95 -1.9 1.0
Aug-95 -1.9 0.7
Sep-95 -1.8 0.0
Oct-95 -1.6 -0.9
Nov-95 -1.3 -2.0
Dec-95 -0.8 -3.0
Jan-96 -0.3 -3.5
Feb-96 0.1 -3.6
Mar-96 0.3 -3.4
Apr-96 0.4 -3.0
May-96 0.3 -2.6
Jun-96 0.1 -2.5
Jul-96 0.0 -2.6
Aug-96 0.0 -2.7
Sep-96 0.0 -2.9
Oct-96 0.1 -2.9
Nov-96 0.2 -2.8
Dec-96 0.4 -2.6
Jan-97 0.6 -2.4
Feb-97 0.7 -2.1
Mar-97 0.6 -1.8
Apr-97 0.4 -1.5
May-97 0.1 -1.1
Jun-97 0.0 -0.6
Jul-97 -0.1 -0.1
Aug-97 0.0 0.4
Sep-97 0.1 0.9
Oct-97 0.2 1.3
Nov-97 0.3 1.7
Dec-97 0.3 1.9
Jan-98 0.2 2.2
Feb-98 0.2 2.6
Mar-98 0.1 3.1
Apr-98 -0.1 3.5
May-98 -0.3 3.7
Jun-98 -0.4 3.8
Jul-98 -0.5 3.7
Aug-98 -0.4 3.4
Sep-98 -0.1 3.0
Oct-98 0.3 2.7
Nov-98 0.6 2.5
Dec-98 0.7 2.5
Jan-99 0.7 2.7
Feb-99 0.6 2.9
Mar-99 0.4 3.1
Apr-99 0.4 3.2
May-99 0.5 3.3
Jun-99 1.0 3.3
Jul-99 1.7 3.4
Aug-99 2.3 3.7
Sep-99 2.7 4.2
Oct-99 2.8 4.7
Nov-99 2.7 4.9
Dec-99 2.5 4.5
Jan-00 2.6 3.6
Feb-00 3.0 2.3
Mar-00 3.6 0.9
Apr-00 4.2 -0.3
May-00 4.7 -1.0
Jun-00 5.1 -1.3
Jul-00 5.4 -1.3
Aug-00 5.7 -1.4
Sep-00 5.9 -1.6
Oct-00 5.9 -1.9
Nov-00 5.7 -2.2
Dec-00 5.3 -2.4
Jan-01 4.8 -2.5
Feb-01 4.7 -2.5
Mar-01 4.9 -2.4
Apr-01 5.1 -2.4
May-01 4.8 -2.4
Jun-01 3.5 -2.4
Jul-01 0.8 -2.7
Aug-01 -2.9 -3.0
Sep-01 -6.4 -3.5
Oct-01 -8.9 -3.9
Nov-01 -9.7 -4.3
Dec-01 -8.8 -4.5
Jan-02 -7.0 -4.4
Feb-02 -5.3 -4.1
Mar-02 -4.1 -3.6
Apr-02 -3.6 -2.9
May-02 -3.5 -2.2
Jun-02 -3.5 -1.5
Jul-02 -3.4 -1.0
Aug-02 -3.3 -0.7
Sep-02 -2.9 -0.5
Oct-02 -2.5 -0.4
Nov-02 -2.3 -0.5
Dec-02 -2.6 -0.8
Jan-03 -3.4 -1.1
Feb-03 -4.5 -1.4
Mar-03 -5.6 -1.7
Apr-03 -6.3 -1.9
May-03 -6.3 -2.0
Jun-03 -5.6 -2.0
Jul-03 -4.6 -1.9
Aug-03 -3.6 -1.7
Sep-03 -2.8 -1.4
Oct-03 -2.2 -1.0
Nov-03 -1.8 -0.5
Dec-03 -1.4 0.2
Jan-04 -0.8 1.0
Feb-04 -0.3 1.7
Mar-04 0.2 2.4
Apr-04 0.6 2.8
May-04 0.9 3.0
Jun-04 1.1 2.8
Jul-04 1.4 2.5
Aug-04 1.7 2.2
Sep-04 2.0 2.0
Oct-04 2.2 1.9
Nov-04 2.3 2.0
Dec-04 2.3 2.1
Jan-05 2.4 2.3
Feb-05 2.5 2.3
Mar-05 2.7 2.3
Apr-05 2.9 2.1
May-05 3.0 1.8
Jun-05 3.1 1.4
Jul-05 2.9 0.8

SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, http://www.bts.gov.