Table:
text: Petaluma and Santa Rosa Railroad
Roster of passenger rolling stock
Roster of passenger rolling stock
Number_ Builder Type_ Date_ Length_ Notes_
51 American Car Company Motor 1904 47`9 retired 1933
53 American Car Company Motor 1904 47`9 retired 1933
55 American Car Company Motor 1904 47`9 became inspection car in 1932 retired 1941
57 American Car Company Motor 1904 47`9 became inspection car in 1932 retired 1941
59 W. L. Holman Car Company Motor 1904 44` retired 1932
61 W. L. Holman Car Company Motor 1904 44` retired 1932
63 W. L. Holman Car Company Motor 1904 44` retired 1932 preserved Western Railway Museum
65 W. L. Holman Car Company Motor 1904 44` retired 1932

text: Petaluma and Santa Rosa Railroad
Roster of passenger rolling stock
Roster of passenger rolling stock
Number_ Builder Type_ Date_ Length_ Notes_
67 W. L. Holman Car Company Motor 1904 44` retired 1932
69 W. L. Holman Car Company Motor 1904 44` converted to express trailer in 1919 retired 1932
71 W. L. Holman Car Company Trailer 1905 44` retired 1929
73 W. L. Holman Car Company Trailer 1905 44` retired 1929
01 W. L. Holman Car Company Express Trailer 1916  built as #8 express motor demotorized 1917 designated express trailer 1920 retired 1933

Question: What was the total number of vehicles in service on the Petaluma and Santa Rosa Railroad in 1906?

Question: What was the total number of cars listed for the Petaluma and Santa Rosa Railroad?