Monthly Hours
1984-01-01 158.4
1984-02-01 152.7
1984-03-01 157.7
1984-04-01 135.3
1984-05-01 155.4
1984-06-01 144.6
1984-07-01 143.8
1984-08-01 142.8
1984-09-01 143.3
1984-10-01 160.8
1984-11-01 151.3
1984-12-01 120.9
1985-01-01 154.2
1985-02-01 142.5
1985-03-01 152.2
1985-04-01 139.1
1985-05-01 152.5
1985-06-01 140.2
1985-07-01 147.1
1985-08-01 136.1
1985-09-01 148.5
1985-10-01 160.9
1985-11-01 146.9
1985-12-01 123.7
1986-01-01 152.9
1986-02-01 141.1
1986-03-01 141.0
1986-04-01 150.7
1986-05-01 145.3
1986-06-01 144.6
1986-07-01 148.0
1986-08-01 132.1
1986-09-01 150.7
1986-10-01 159.9
1986-11-01 140.8
1986-12-01 128.5
1987-01-01 148.7
1987-02-01 145.4
1987-03-01 160.5
1987-04-01 146.8
1987-05-01 144.0
1987-06-01 151.4
1987-07-01 146.4
1987-08-01 132.6
1987-09-01 154.9
1987-10-01 155.9
1987-11-01 153.5
1987-12-01 135.8
1988-01-01 145.7
1988-02-01 151.8
1988-03-01 161.5
1988-04-01 141.5
1988-05-01 153.6
1988-06-01 151.5
1988-07-01 137.2
1988-08-01 147.2
1988-09-01 152.1
1988-10-01 149.7
1988-11-01 152.5
1988-12-01 131.3
1989-01-01 153.0
1989-02-01 143.9
1989-03-01 149.3
1989-04-01 137.8
1989-05-01 152.7
1989-06-01 149.6
1989-07-01 137.3
1989-08-01 147.6
1989-09-01 145.8
1989-10-01 152.2
1989-11-01 154.3
1989-12-01 122.1
