+------+-------------+--------+---------+-------+
| Year.| Netherlands.| France.| Hungary.| U.S.A.|
+------+-------------+--------+---------+-------+
| 1882 | 98 | .. | 141 | .. |
| 1883 | 117 | .. | 195 | .. |
| 1884 | 95 | .. | 229 | .. |
| 1885 | 93 | .. | 192 | .. |
| 1886 | 102 | 251 | 319 | .. |
| 1887 | 78 | 292 | 236 | .. |
| 1888 | 94 | 286 | 232 | .. |
| 1889 | 126 | 294 | 258 | .. |
| 1890 | 93 | 299 | 265 | .. |
| 1891 | 98 | 317 | 302 | 204 |
| 1892 | 86 | 324 | 350 | 251 |
| 1893 | 102 | 288 | 233 | 209 |
| 1894 | 111 | 300 | 333 | 336 |
| 1895 | 119 | 309 | 280 | 426 |
| 1896 | 109 | 266 | 299 | 341 |
| 1897 | 119 | 297 | 350 | 362 |
| 1898 | 95 | 299 | 386 | 367 |
| 1899 | 112 | 299 | 368 | 563 |
| 1900 | 108 | .. | 401 | 713 |
| 1901 | .. | .. | 502 | .. |
| 1902 | .. | .. | 322 | .. |
| 1903 | .. | .. | 256 | .. |
+------+-------------+--------+---------+-------+
33. Table XIII. gives some data as to the variability of thunder from
year to year. The figures for the Netherlands (69) and France (71) are
the number of days when thunder occurred somewhere in the country. Its
larger area and more varied climate give a much larger number of days
of thunder to France. Notwithstanding the proximity of the two
countries, there is not much parallelism between the data. The figures
for Hungary (67) give the number of lightning strokes causing fire;
those for the United States (68) give the number of persons killed by
lightning. The conspicuous maximum in 1901 and great drop in 1902 in
Hungary are also shown by the statistics as to the number of days of
thunder. This number at the average station of the country fell from
38.4 in 1901 to 23.1 in 1902. On the whole, however, the number of
destructive lightning strokes and of days of thunder do not show a
close parallelism.