Quarter	Number Of Concerns
1882-01-01	2146.00
1882-04-01	1503.00
1882-07-01	1658.00
1882-10-01	2328.00
1883-01-01	3189.00
1883-04-01	2107.00
1883-07-01	2062.00
1883-10-01	2941.00
1884-01-01	3320.00
1884-04-01	2124.00
1884-07-01	2858.00
1884-10-01	3318.00
1885-01-01	4050.00
1885-04-01	2056.00
1885-07-01	2327.00
1885-10-01	2683.00
1886-01-01	3302.00
1886-04-01	2159.00
1886-07-01	2057.00
1886-10-01	3050.00
1887-01-01	3128.00
1887-04-01	1944.00
1887-07-01	1886.00
1887-10-01	2782.00
1888-01-01	3053.00
1888-04-01	2201.00
1888-07-01	2076.00
1888-10-01	3257.00
1889-01-01	3569.00
1889-04-01	2349.00
1889-07-01	2416.00
1889-10-01	3385.00
1890-01-01	3326.00
1890-04-01	2140.00
1890-07-01	2072.00
1890-10-01	3135.00
1891-01-01	3401.00
1891-04-01	2636.00
1891-07-01	2829.00
1891-10-01	3528.00
1892-01-01	3207.00
1892-04-01	2144.00
1892-07-01	2027.00
1892-10-01	2892.00